61270354735972 has 48 divisors (see below), whose sum is σ = 111547546875072. Its totient is φ = 29423688094080.

The previous prime is 61270354735937. The next prime is 61270354736081. The reversal of 61270354735972 is 27953745307216.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a self number, because there is not a number n which added to its sum of digits gives 61270354735972.

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, 35533578 + ... + 37217950.

It is an arithmetic number, because the mean of its divisors is an integer number (2323907226564).

Almost surely, 2^{61270354735972} is an apocalyptic number.

It is an amenable number.

61270354735972 is a deficient number, since it is larger than the sum of its proper divisors (50277192139100).

61270354735972 is a wasteful number, since it uses less digits than its factorization.

61270354735972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687948 (or 1687946 counting only the distinct ones).

The product of its (nonzero) digits is 66679200, while the sum is 61.

The spelling of 61270354735972 in words is "sixty-one trillion, two hundred seventy billion, three hundred fifty-four million, seven hundred thirty-five thousand, nine hundred seventy-two".