31044154025040 has 80 divisors (see below), whose sum is σ = 103639714217088. Its totient is φ = 7641637913088.

The previous prime is 31044154025039. The next prime is 31044154025051. The reversal of 31044154025040 is 4052045144013.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 31044154024992 and 31044154025010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4975021564 + ... + 4975027803.

Almost surely, 2^{31044154025040} is an apocalyptic number.

31044154025040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31044154025040 is an abundant number, since it is smaller than the sum of its proper divisors (72595560192048).

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

31044154025040 is a wasteful number, since it uses less digits than its factorization.

31044154025040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9950049396 (or 9950049390 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 31044154025040 its reverse (4052045144013), we get a palindrome (35096199169053).

The spelling of 31044154025040 in words is "thirty-one trillion, forty-four billion, one hundred fifty-four million, twenty-five thousand, forty".