61147837038 has 16 divisors (see below), whose sum is σ = 124300521936. Its totient is φ = 20048471040.

The previous prime is 61147837031. The next prime is 61147837043. The reversal of 61147837038 is 83073874116.

It is a super-2 number, since 2×61147837038² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61147837031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83534931 + ... + 83535662.

It is an arithmetic number, because the mean of its divisors is an integer number (7768782621).

Almost surely, 2^61147837038 is an apocalyptic number.

61147837038 is an abundant number, since it is smaller than the sum of its proper divisors (63152684898).

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

61147837038 is a wasteful number, since it uses less digits than its factorization.

61147837038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167070659.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 61147837038 in words is "sixty-one billion, one hundred forty-seven million, eight hundred thirty-seven thousand, thirty-eight".