61463900976 has 80 divisors (see below), whose sum is σ = 163472870400. Its totient is φ = 19887690240.

The previous prime is 61463900963. The next prime is 61463900989. The reversal of 61463900976 is 67900936416.

It is an interprime number because it is at equal distance from previous prime (61463900963) and next prime (61463900989).

It is a super-2 number, since 2×61463900976² (a number of 22 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 313161 + ... + 470103.

It is an arithmetic number, because the mean of its divisors is an integer number (2043410880).

Almost surely, 2^61463900976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61463900976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81736435200).

61463900976 is an abundant number, since it is smaller than the sum of its proper divisors (102008969424).

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

61463900976 is a wasteful number, since it uses less digits than its factorization.

61463900976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157194 (or 157188 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 51.

The spelling of 61463900976 in words is "sixty-one billion, four hundred sixty-three million, nine hundred thousand, nine hundred seventy-six".