20637034954 has 8 divisors (see below), whose sum is σ = 31539619620. Its totient is φ = 10123828416.

The previous prime is 20637034939. The next prime is 20637034967. The reversal of 20637034954 is 45943073602.

It can be written as a sum of positive squares in 2 ways, for example, as 17269902225 + 3367132729 = 131415^2 + 58027^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 20637034954.

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, 97344399 + ... + 97344610.

Almost surely, 2^20637034954 is an apocalyptic number.

20637034954 is a deficient number, since it is larger than the sum of its proper divisors (10902584666).

20637034954 is a wasteful number, since it uses less digits than its factorization.

20637034954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194689064.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 20637034954 in words is "twenty billion, six hundred thirty-seven million, thirty-four thousand, nine hundred fifty-four".