31499930954 has 4 divisors (see below), whose sum is σ = 47249896434. Its totient is φ = 15749965476.

The previous prime is 31499930939. The next prime is 31499931011. The reversal of 31499930954 is 45903999413.

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

It can be written as a sum of positive squares in only one way, i.e., 21434424025 + 10065506929 = 146405^2 + 100327^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31499930954.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7874982737 + ... + 7874982740.

Almost surely, 2^31499930954 is an apocalyptic number.

31499930954 is a deficient number, since it is larger than the sum of its proper divisors (15749965480).

31499930954 is a wasteful number, since it uses less digits than its factorization.

31499930954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15749965479.

The product of its (nonzero) digits is 4723920, while the sum is 56.

The spelling of 31499930954 in words is "thirty-one billion, four hundred ninety-nine million, nine hundred thirty thousand, nine hundred fifty-four".