613121055420432 has 160 divisors (see below), whose sum is σ = 1848073189995648. Its totient is φ = 173426222850048.

The previous prime is 613121055420431. The next prime is 613121055420469. The reversal of 613121055420432 is 234024550121316.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (613121055420431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 671613483 + ... + 672525770.

Almost surely, 2^{613121055420432} is an apocalyptic number.

It is an amenable number.

613121055420432 is an abundant number, since it is smaller than the sum of its proper divisors (1234952134575216).

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

613121055420432 is a wasteful number, since it uses less digits than its factorization.

613121055420432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344139337 (or 1344139331 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 613121055420432 in words is "six hundred thirteen trillion, one hundred twenty-one billion, fifty-five million, four hundred twenty thousand, four hundred thirty-two".