61402557265134 has 64 divisors (see below), whose sum is σ = 127650695731200. Its totient is φ = 19669201349760.

The previous prime is 61402557265117. The next prime is 61402557265139. The reversal of 61402557265134 is 43156275520416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61402557265139) 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, 106494529 + ... + 107069555.

It is an arithmetic number, because the mean of its divisors is an integer number (1994542120800).

Almost surely, 2^{61402557265134} is an apocalyptic number.

61402557265134 is an abundant number, since it is smaller than the sum of its proper divisors (66248138466066).

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

61402557265134 is a wasteful number, since it uses less digits than its factorization.

61402557265134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579065.

The product of its (nonzero) digits is 6048000, while the sum is 51.

The spelling of 61402557265134 in words is "sixty-one trillion, four hundred two billion, five hundred fifty-seven million, two hundred sixty-five thousand, one hundred thirty-four".