61573004352 has 84 divisors (see below), whose sum is σ = 176563513776. Its totient is φ = 20515541760.

The previous prime is 61573004333. The next prime is 61573004371. The reversal of 61573004352 is 25340037516.

61573004352 is a `hidden beast` number, since 615 + 7 + 3 + 0 + 0 + 4 + 35 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (61573004333) and next prime (61573004371).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1399327 + ... + 1442657.

Almost surely, 2^61573004352 is an apocalyptic number.

It is an amenable number.

61573004352 is an abundant number, since it is smaller than the sum of its proper divisors (114990509424).

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

61573004352 is a wasteful number, since it uses less digits than its factorization.

61573004352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45816 (or 45803 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The spelling of 61573004352 in words is "sixty-one billion, five hundred seventy-three million, four thousand, three hundred fifty-two".