921739480107 has 4 divisors (see below), whose sum is σ = 1228985973480. Its totient is φ = 614492986736.

The previous prime is 921739480093. The next prime is 921739480111. The reversal of 921739480107 is 701084937129.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 701084937129 = 3 ⋅233694979043.

It is a cyclic number.

It is not a de Polignac number, because 921739480107 - 2¹⁰ = 921739479083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 921739480107.

It is not an unprimeable number, because it can be changed into a prime (921739480307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153623246682 + ... + 153623246687.

It is an arithmetic number, because the mean of its divisors is an integer number (307246493370).

Almost surely, 2^921739480107 is an apocalyptic number.

921739480107 is a deficient number, since it is larger than the sum of its proper divisors (307246493373).

921739480107 is a wasteful number, since it uses less digits than its factorization.

921739480107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307246493372.

The product of its (nonzero) digits is 762048, while the sum is 51.

The spelling of 921739480107 in words is "nine hundred twenty-one billion, seven hundred thirty-nine million, four hundred eighty thousand, one hundred seven".