61037812208 has 20 divisors (see below), whose sum is σ = 124485012360. Its totient is φ = 28912647744.

The previous prime is 61037812193. The next prime is 61037812217. The reversal of 61037812208 is 80221873016.

It is a super-2 number, since 2×61037812208² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 100390835 + ... + 100391442.

It is an arithmetic number, because the mean of its divisors is an integer number (6224250618).

Almost surely, 2^61037812208 is an apocalyptic number.

It is an amenable number.

61037812208 is an abundant number, since it is smaller than the sum of its proper divisors (63447200152).

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

61037812208 is a wasteful number, since it uses less digits than its factorization.

61037812208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200782304 (or 200782298 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 61037812208 in words is "sixty-one billion, thirty-seven million, eight hundred twelve thousand, two hundred eight".