31357754642 has 8 divisors (see below), whose sum is σ = 47042212656. Its totient is φ = 15677017092.

The previous prime is 31357754609. The next prime is 31357754699. The reversal of 31357754642 is 24645775313.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 908948 + ... + 942815.

It is an arithmetic number, because the mean of its divisors is an integer number (5880276582).

Almost surely, 2^31357754642 is an apocalyptic number.

31357754642 is a deficient number, since it is larger than the sum of its proper divisors (15684458014).

31357754642 is a wasteful number, since it uses less digits than its factorization.

31357754642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860232.

The product of its digits is 2116800, while the sum is 47.

The spelling of 31357754642 in words is "thirty-one billion, three hundred fifty-seven million, seven hundred fifty-four thousand, six hundred forty-two".