61351777476396 has 54 divisors (see below), whose sum is σ = 170463857403476. Its totient is φ = 18591447718800.

The previous prime is 61351777476323. The next prime is 61351777476397. The reversal of 61351777476396 is 69367477715316.

It is a happy number.

61351777476396 is a `hidden beast` number, since 6 + 1 + 3 + 51 + 7 + 77 + 476 + 39 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (61351777476397) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7042210690 + ... + 7042219401.

Almost surely, 2^{61351777476396} is an apocalyptic number.

61351777476396 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

61351777476396 is an abundant number, since it is smaller than the sum of its proper divisors (109112079927080).

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

61351777476396 is a wasteful number, since it uses less digits than its factorization.

61351777476396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14084430123 (or 14084430107 counting only the distinct ones).

The product of its digits is 840157920, while the sum is 72.

The spelling of 61351777476396 in words is "sixty-one trillion, three hundred fifty-one billion, seven hundred seventy-seven million, four hundred seventy-six thousand, three hundred ninety-six".