7914546921 has 16 divisors (see below), whose sum is σ = 10684215360. Its totient is φ = 5210673600.

The previous prime is 7914546839. The next prime is 7914546943. The reversal of 7914546921 is 1296454197.

It is a happy number.

It is not a de Polignac number, because 7914546921 - 2¹³ = 7914538729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7914546961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 817135 + ... + 826763.

It is an arithmetic number, because the mean of its divisors is an integer number (667763460).

Almost surely, 2^7914546921 is an apocalyptic number.

It is an amenable number.

7914546921 is a deficient number, since it is larger than the sum of its proper divisors (2769668439).

7914546921 is a wasteful number, since it uses less digits than its factorization.

7914546921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13016.

The product of its digits is 544320, while the sum is 48.

The square root of 7914546921 is about 88963.7393604833. The cubic root of 7914546921 is about 1992.8534035801.

The spelling of 7914546921 in words is "seven billion, nine hundred fourteen million, five hundred forty-six thousand, nine hundred twenty-one".