31405452002 has 16 divisors (see below), whose sum is σ = 47545098552. Its totient is φ = 15557203200.

The previous prime is 31405451989. The next prime is 31405452053. The reversal of 31405452002 is 20025450413.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20118301921 + 11287150081 = 141839^2 + 106241^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531752 + ... + 587852.

Almost surely, 2^31405452002 is an apocalyptic number.

31405452002 is a deficient number, since it is larger than the sum of its proper divisors (16139646550).

31405452002 is a wasteful number, since it uses less digits than its factorization.

31405452002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58693.

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 31405452002 in words is "thirty-one billion, four hundred five million, four hundred fifty-two thousand, two".