31628418087 has 8 divisors (see below), whose sum is σ = 48195684736. Its totient is φ = 18073381752.

The previous prime is 31628418083. The next prime is 31628418089. The reversal of 31628418087 is 78081482613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31628418087 - 2² = 31628418083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31628418083) 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, 753057553 + ... + 753057594.

It is an arithmetic number, because the mean of its divisors is an integer number (6024460592).

Almost surely, 2^31628418087 is an apocalyptic number.

31628418087 is a deficient number, since it is larger than the sum of its proper divisors (16567266649).

31628418087 is a wasteful number, since it uses less digits than its factorization.

31628418087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506115157.

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 31628418087 in words is "thirty-one billion, six hundred twenty-eight million, four hundred eighteen thousand, eighty-seven".