31415451072 has 56 divisors (see below), whose sum is σ = 83261947776. Its totient is φ = 10453939968.

The previous prime is 31415451061. The next prime is 31415451077. The reversal of 31415451072 is 27015451413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31415451077) 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, 26668 + ... + 252075.

It is an arithmetic number, because the mean of its divisors is an integer number (1486820496).

Almost surely, 2^31415451072 is an apocalyptic number.

31415451072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31415451072 is an abundant number, since it is smaller than the sum of its proper divisors (51846496704).

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

31415451072 is a wasteful number, since it uses less digits than its factorization.

31415451072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279345 (or 279335 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 31415451072 in words is "thirty-one billion, four hundred fifteen million, four hundred fifty-one thousand, seventy-two".