31504154404 has 6 divisors (see below), whose sum is σ = 55132270214. Its totient is φ = 15752077200.

The previous prime is 31504154399. The next prime is 31504154413. The reversal of 31504154404 is 40445140513.

It can be written as a sum of positive squares in only one way, i.e., 30916188900 + 587965504 = 175830^2 + 24248^2 .

It is a super-2 number, since 2×31504154404² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3938019297 + ... + 3938019304.

Almost surely, 2^31504154404 is an apocalyptic number.

It is an amenable number.

31504154404 is a deficient number, since it is larger than the sum of its proper divisors (23628115810).

31504154404 is a wasteful number, since it uses less digits than its factorization.

31504154404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7876038605 (or 7876038603 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 31504154404 its reverse (40445140513), we get a palindrome (71949294917).

The spelling of 31504154404 in words is "thirty-one billion, five hundred four million, one hundred fifty-four thousand, four hundred four".