61038130538 has 32 divisors (see below), whose sum is σ = 118085420160. Its totient is φ = 22961050560.

The previous prime is 61038130523. The next prime is 61038130577. The reversal of 61038130538 is 83503183016.

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, 6829181 + ... + 6838112.

It is an arithmetic number, because the mean of its divisors is an integer number (3690169380).

Almost surely, 2^61038130538 is an apocalyptic number.

61038130538 is a deficient number, since it is larger than the sum of its proper divisors (57047289622).

61038130538 is a wasteful number, since it uses less digits than its factorization.

61038130538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13667342.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 61038130538 in words is "sixty-one billion, thirty-eight million, one hundred thirty thousand, five hundred thirty-eight".