21770108074 has 64 divisors (see below), whose sum is σ = 40106803968. Its totient is φ = 8720870400.

The previous prime is 21770108071. The next prime is 21770108077. The reversal of 21770108074 is 47080107712.

It is an interprime number because it is at equal distance from previous prime (21770108071) and next prime (21770108077).

It is not an unprimeable number, because it can be changed into a prime (21770108071) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3897964 + ... + 3903544.

It is an arithmetic number, because the mean of its divisors is an integer number (626668812).

Almost surely, 2^21770108074 is an apocalyptic number.

21770108074 is a deficient number, since it is larger than the sum of its proper divisors (18336695894).

21770108074 is a wasteful number, since it uses less digits than its factorization.

21770108074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6223.

The product of its (nonzero) digits is 21952, while the sum is 37.

The spelling of 21770108074 in words is "twenty-one billion, seven hundred seventy million, one hundred eight thousand, seventy-four".