61351777476468 has 48 divisors (see below), whose sum is σ = 159065738628160. Its totient is φ = 20449875732192.

The previous prime is 61351777476443. The next prime is 61351777476547. The reversal of 61351777476468 is 86467477715316.

61351777476468 is a `hidden beast` number, since 6 + 1 + 3 + 51 + 7 + 77 + 47 + 6 + 468 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 61351777476396 and 61351777476405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6854830 + ... + 13026597.

Almost surely, 2^{61351777476468} is an apocalyptic number.

It is an amenable number.

61351777476468 is an abundant number, since it is smaller than the sum of its proper divisors (97713961151692).

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

61351777476468 is a wasteful number, since it uses less digits than its factorization.

61351777476468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19910013 (or 19910005 counting only the distinct ones).

The product of its digits is 995742720, while the sum is 72.

The spelling of 61351777476468 in words is "sixty-one trillion, three hundred fifty-one billion, seven hundred seventy-seven million, four hundred seventy-six thousand, four hundred sixty-eight".