61431274926 has 48 divisors (see below), whose sum is σ = 152880000000. Its totient is φ = 17463585744.

The previous prime is 61431274907. The next prime is 61431275027. The reversal of 61431274926 is 62947213416.

61431274926 is a `hidden beast` number, since 6 + 143 + 12 + 7 + 492 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1199926 + ... + 1250073.

It is an arithmetic number, because the mean of its divisors is an integer number (3185000000).

Almost surely, 2^61431274926 is an apocalyptic number.

61431274926 is an abundant number, since it is smaller than the sum of its proper divisors (91448725074).

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

61431274926 is a wasteful number, since it uses less digits than its factorization.

61431274926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450213 (or 2450210 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The spelling of 61431274926 in words is "sixty-one billion, four hundred thirty-one million, two hundred seventy-four thousand, nine hundred twenty-six".