20938877098 has 32 divisors (see below), whose sum is σ = 32361768000. Its totient is φ = 10156755840.

The previous prime is 20938877077. The next prime is 20938877111. The reversal of 20938877098 is 89077883902.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6499128 + ... + 6502348.

It is an arithmetic number, because the mean of its divisors is an integer number (1011305250).

Almost surely, 2^20938877098 is an apocalyptic number.

20938877098 is a deficient number, since it is larger than the sum of its proper divisors (11422890902).

20938877098 is a wasteful number, since it uses less digits than its factorization.

20938877098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3990.

The product of its (nonzero) digits is 12192768, while the sum is 61.

The spelling of 20938877098 in words is "twenty billion, nine hundred thirty-eight million, eight hundred seventy-seven thousand, ninety-eight".