2679356421 has 64 divisors (see below), whose sum is σ = 4795084800. Its totient is φ = 1444454208.

The previous prime is 2679356413. The next prime is 2679356431. The reversal of 2679356421 is 1246539762.

2679356421 is a `hidden beast` number, since 2 + 67 + 9 + 3 + 564 + 21 = 666.

It is not a de Polignac number, because 2679356421 - 2³ = 2679356413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2679356431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 943015 + ... + 945851.

It is an arithmetic number, because the mean of its divisors is an integer number (74923200).

Almost surely, 2^2679356421 is an apocalyptic number.

2679356421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2679356421 is a deficient number, since it is larger than the sum of its proper divisors (2115728379).

2679356421 is a wasteful number, since it uses less digits than its factorization.

2679356421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3135 (or 3129 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 2679356421 is about 51762.5001424777. The cubic root of 2679356421 is about 1388.9187148342.

The spelling of 2679356421 in words is "two billion, six hundred seventy-nine million, three hundred fifty-six thousand, four hundred twenty-one".