61674786251 has 16 divisors (see below), whose sum is σ = 70679448000. Its totient is φ = 53312421888.

The previous prime is 61674786221. The next prime is 61674786259. The reversal of 61674786251 is 15268747616.

It is a cyclic number.

It is not a de Polignac number, because 61674786251 - 2³⁴ = 44494917067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61674786193 and 61674786202.

It is not an unprimeable number, because it can be changed into a prime (61674786259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657206 + ... + 745163.

It is an arithmetic number, because the mean of its divisors is an integer number (4417465500).

Almost surely, 2^61674786251 is an apocalyptic number.

61674786251 is a deficient number, since it is larger than the sum of its proper divisors (9004661749).

61674786251 is a wasteful number, since it uses less digits than its factorization.

61674786251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402598.

The product of its digits is 3386880, while the sum is 53.

The spelling of 61674786251 in words is "sixty-one billion, six hundred seventy-four million, seven hundred eighty-six thousand, two hundred fifty-one".