61357372426 has 48 divisors (see below), whose sum is σ = 108815196096. Its totient is φ = 25866618624.

The previous prime is 61357372411. The next prime is 61357372487. The reversal of 61357372426 is 62427375316.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4872250 + ... + 4884826.

It is an arithmetic number, because the mean of its divisors is an integer number (2266983252).

Almost surely, 2^61357372426 is an apocalyptic number.

61357372426 is a deficient number, since it is larger than the sum of its proper divisors (47457823670).

61357372426 is a wasteful number, since it uses less digits than its factorization.

61357372426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13403 (or 13396 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 46.

It can be divided in two parts, 6135 and 7372426, that added together give a triangular number (7378561 = T₃₈₄₁).

The spelling of 61357372426 in words is "sixty-one billion, three hundred fifty-seven million, three hundred seventy-two thousand, four hundred twenty-six".