61333100038831 has 4 divisors (see below), whose sum is σ = 61376020334200. Its totient is φ = 61290179743464.

The previous prime is 61333100038829. The next prime is 61333100038853. The reversal of 61333100038831 is 13883000133316.

61333100038831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61333100038831 - 2¹ = 61333100038829 is a prime.

It is a super-2 number, since 2×61333100038831² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61333100018831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21460145541 + ... + 21460148398.

It is an arithmetic number, because the mean of its divisors is an integer number (15344005083550).

Almost surely, 2^{61333100038831} is an apocalyptic number.

61333100038831 is a deficient number, since it is larger than the sum of its proper divisors (42920295369).

61333100038831 is a wasteful number, since it uses less digits than its factorization.

61333100038831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42920295368.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 61333100038831 in words is "sixty-one trillion, three hundred thirty-three billion, one hundred million, thirty-eight thousand, eight hundred thirty-one".