61896930210 has 48 divisors (see below), whose sum is σ = 162494489664. Its totient is φ = 16345594656.

The previous prime is 61896930209. The next prime is 61896930223. The reversal of 61896930210 is 1203969816.

It is a happy number.

61896930210 is a `hidden beast` number, since 618 + 9 + 6 + 9 + 3 + 0 + 21 + 0 = 666.

It is a super-2 number, since 2×61896930210² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 23 ways as a sum of consecutive naturals, for example, 3329292 + ... + 3347831.

It is an arithmetic number, because the mean of its divisors is an integer number (3385301868).

Almost surely, 2^61896930210 is an apocalyptic number.

61896930210 is an abundant number, since it is smaller than the sum of its proper divisors (100597559454).

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

61896930210 is a wasteful number, since it uses less digits than its factorization.

61896930210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6677239 (or 6677236 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 61896930210 in words is "sixty-one billion, eight hundred ninety-six million, nine hundred thirty thousand, two hundred ten".