20375957402 has 8 divisors (see below), whose sum is σ = 30609084276. Its totient is φ = 10172929312.

The previous prime is 20375957383. The next prime is 20375957513. The reversal of 20375957402 is 20475957302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20363004601 + 12952801 = 142699^2 + 3599^2 .

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, 7523003 + ... + 7525710.

Almost surely, 2^20375957402 is an apocalyptic number.

20375957402 is a deficient number, since it is larger than the sum of its proper divisors (10233126874).

20375957402 is a wasteful number, since it uses less digits than its factorization.

20375957402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15049392.

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 20375957402 in words is "twenty billion, three hundred seventy-five million, nine hundred fifty-seven thousand, four hundred two".