6626258779 has 6 divisors (see below), whose sum is σ = 7708097004. Its totient is φ = 5679650340.

The previous prime is 6626258777. The next prime is 6626258783. The reversal of 6626258779 is 9778526266.

It is not a de Polignac number, because 6626258779 - 2¹ = 6626258777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6626258777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67614837 + ... + 67614934.

It is an arithmetic number, because the mean of its divisors is an integer number (1284682834).

Almost surely, 2^6626258779 is an apocalyptic number.

6626258779 is a deficient number, since it is larger than the sum of its proper divisors (1081838225).

6626258779 is a wasteful number, since it uses less digits than its factorization.

6626258779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135229785 (or 135229778 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 58.

The square root of 6626258779 is about 81401.8352311543. The cubic root of 6626258779 is about 1878.2618213669.

The spelling of 6626258779 in words is "six billion, six hundred twenty-six million, two hundred fifty-eight thousand, seven hundred seventy-nine".