610736987394 has 64 divisors (see below), whose sum is σ = 1371937593600. Its totient is φ = 201369659904.

The previous prime is 610736987387. The next prime is 610736987401. The reversal of 610736987394 is 493789637016.

610736987394 is a `hidden beast` number, since 6 + 107 + 3 + 69 + 87 + 394 = 666.

It is an interprime number because it is at equal distance from previous prime (610736987387) and next prime (610736987401).

It is a super-2 number, since 2×610736987394² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9800667 + ... + 9862785.

It is an arithmetic number, because the mean of its divisors is an integer number (21436524900).

Almost surely, 2^610736987394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 610736987394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (685968796800).

610736987394 is an abundant number, since it is smaller than the sum of its proper divisors (761200606206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

610736987394 is a wasteful number, since it uses less digits than its factorization.

610736987394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64104 (or 64098 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 63.

The spelling of 610736987394 in words is "six hundred ten billion, seven hundred thirty-six million, nine hundred eighty-seven thousand, three hundred ninety-four".