31457280002 has 16 divisors (see below), whose sum is σ = 47421588672. Its totient is φ = 15650165520.

The previous prime is 31457279981. The next prime is 31457280007. The reversal of 31457280002 is 20008275413.

31457280002 = 102399² + 102400² + 102401².

It is not an unprimeable number, because it can be changed into a prime (31457280007) 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, 790052 + ... + 828912.

It is an arithmetic number, because the mean of its divisors is an integer number (2963849292).

Almost surely, 2^31457280002 is an apocalyptic number.

31457280002 is a deficient number, since it is larger than the sum of its proper divisors (15964308670).

31457280002 is a wasteful number, since it uses less digits than its factorization.

31457280002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40873.

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 31457280002 in words is "thirty-one billion, four hundred fifty-seven million, two hundred eighty thousand, two".