61860901347 has 48 divisors (see below), whose sum is σ = 108602690560. Its totient is φ = 33143302656.

The previous prime is 61860901343. The next prime is 61860901363. The reversal of 61860901347 is 74310906816.

It is a happy number.

61860901347 is a `hidden beast` number, since 6 + 1 + 8 + 609 + 0 + 1 + 34 + 7 = 666.

It is not a de Polignac number, because 61860901347 - 2² = 61860901343 is a prime.

It is a super-2 number, since 2×61860901347² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61860901343) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 150283 + ... + 382500.

Almost surely, 2^61860901347 is an apocalyptic number.

61860901347 is a deficient number, since it is larger than the sum of its proper divisors (46741789213).

61860901347 is a wasteful number, since it uses less digits than its factorization.

61860901347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532912 (or 532909 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 61860901347 in words is "sixty-one billion, eight hundred sixty million, nine hundred one thousand, three hundred forty-seven".