20390373958 has 8 divisors (see below), whose sum is σ = 30744035928. Its totient is φ = 10142361984.

The previous prime is 20390373929. The next prime is 20390373973. The reversal of 20390373958 is 85937309302.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26412016 + ... + 26412787.

It is an arithmetic number, because the mean of its divisors is an integer number (3843004491).

Almost surely, 2^20390373958 is an apocalyptic number.

20390373958 is a deficient number, since it is larger than the sum of its proper divisors (10353661970).

20390373958 is a wasteful number, since it uses less digits than its factorization.

20390373958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52824998.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The spelling of 20390373958 in words is "twenty billion, three hundred ninety million, three hundred seventy-three thousand, nine hundred fifty-eight".