61757211423672 has 48 divisors (see below), whose sum is σ = 167259560760240. Its totient is φ = 20585682188928.

The previous prime is 61757211423659. The next prime is 61757211423709. The reversal of 61757211423672 is 27632411275716.

61757211423672 is a `hidden beast` number, since 6 + 1 + 7 + 572 + 1 + 1 + 4 + 2 + 3 + 67 + 2 = 666.

61757211423672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33064068 + ... + 34881900.

It is an arithmetic number, because the mean of its divisors is an integer number (3484574182505).

Almost surely, 2^{61757211423672} is an apocalyptic number.

It is an amenable number.

61757211423672 is an abundant number, since it is smaller than the sum of its proper divisors (105502349336568).

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

61757211423672 is a wasteful number, since it uses less digits than its factorization.

61757211423672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289692 (or 2289685 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 54.

The spelling of 61757211423672 in words is "sixty-one trillion, seven hundred fifty-seven billion, two hundred eleven million, four hundred twenty-three thousand, six hundred seventy-two".