61739204331 has 8 divisors (see below), whose sum is σ = 94078787584. Its totient is φ = 35279545320.

The previous prime is 61739204299. The next prime is 61739204381. The reversal of 61739204331 is 13340293716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61739204331 - 2⁵ = 61739204299 is a prime.

It is a super-2 number, since 2×61739204331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61739204331.

It is not an unprimeable number, because it can be changed into a prime (61739204381) 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, 1469981035 + ... + 1469981076.

It is an arithmetic number, because the mean of its divisors is an integer number (11759848448).

Almost surely, 2^61739204331 is an apocalyptic number.

61739204331 is a deficient number, since it is larger than the sum of its proper divisors (32339583253).

61739204331 is a wasteful number, since it uses less digits than its factorization.

61739204331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939962121.

The product of its (nonzero) digits is 81648, while the sum is 39.

The spelling of 61739204331 in words is "sixty-one billion, seven hundred thirty-nine million, two hundred four thousand, three hundred thirty-one".