20610749074 has 16 divisors (see below), whose sum is σ = 31878971712. Its totient is φ = 9989110768.

The previous prime is 20610749009. The next prime is 20610749197. The reversal of 20610749074 is 47094701602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1162534 + ... + 1180129.

It is an arithmetic number, because the mean of its divisors is an integer number (1992435732).

Almost surely, 2^20610749074 is an apocalyptic number.

20610749074 is a deficient number, since it is larger than the sum of its proper divisors (11268222638).

20610749074 is a wasteful number, since it uses less digits than its factorization.

20610749074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342801.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 20610749074 in words is "twenty billion, six hundred ten million, seven hundred forty-nine thousand, seventy-four".