31417322644 has 12 divisors (see below), whose sum is σ = 55073034324. Its totient is φ = 15682169984.

The previous prime is 31417322641. The next prime is 31417322647. The reversal of 31417322644 is 44622371413.

It is an interprime number because it is at equal distance from previous prime (31417322641) and next prime (31417322647).

It can be written as a sum of positive squares in 2 ways, for example, as 8498996100 + 22918326544 = 92190^2 + 151388^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31417322641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6620167 + ... + 6624910.

It is an arithmetic number, because the mean of its divisors is an integer number (4589419527).

Almost surely, 2^31417322644 is an apocalyptic number.

It is an amenable number.

31417322644 is a deficient number, since it is larger than the sum of its proper divisors (23655711680).

31417322644 is a wasteful number, since it uses less digits than its factorization.

31417322644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13245674 (or 13245672 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

It can be divided in two parts, 31417 and 322644, that added together give a triangular number (354061 = T₈₄₁).

The spelling of 31417322644 in words is "thirty-one billion, four hundred seventeen million, three hundred twenty-two thousand, six hundred forty-four".