31364240887648 has 12 divisors (see below), whose sum is σ = 61748349247620. Its totient is φ = 15682120443808.

The previous prime is 31364240887589. The next prime is 31364240887667. The reversal of 31364240887648 is 84678804246313.

It is a self number, because there is not a number n which added to its sum of digits gives 31364240887648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490066263838 + ... + 490066263901.

It is an arithmetic number, because the mean of its divisors is an integer number (5145695770635).

Almost surely, 2^{31364240887648} is an apocalyptic number.

It is an amenable number.

31364240887648 is a deficient number, since it is larger than the sum of its proper divisors (30384108359972).

31364240887648 is an equidigital number, since it uses as much as digits as its factorization.

31364240887648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980132527749 (or 980132527741 counting only the distinct ones).

The product of its (nonzero) digits is 148635648, while the sum is 64.

The spelling of 31364240887648 in words is "thirty-one trillion, three hundred sixty-four billion, two hundred forty million, eight hundred eighty-seven thousand, six hundred forty-eight".