2579026421 has 2 divisors, whose sum is σ = 2579026422. Its totient is φ = 2579026420.

The previous prime is 2579026399. The next prime is 2579026447. The reversal of 2579026421 is 1246209752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1624896100 + 954130321 = 40310^2 + 30889^2 .

It is a cyclic number.

It is not a de Polignac number, because 2579026421 - 2⁶ = 2579026357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2579026621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1289513210 + 1289513211.

It is an arithmetic number, because the mean of its divisors is an integer number (1289513211).

Almost surely, 2^2579026421 is an apocalyptic number.

It is an amenable number.

2579026421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2579026421 is an equidigital number, since it uses as much as digits as its factorization.

2579026421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 2579026421 is about 50784.1158335951. The cubic root of 2579026421 is about 1371.3614294195.

The spelling of 2579026421 in words is "two billion, five hundred seventy-nine million, twenty-six thousand, four hundred twenty-one".