6420252626 has 16 divisors (see below), whose sum is σ = 9828895104. Its totient is φ = 3144161904.

The previous prime is 6420252611. The next prime is 6420252673. The reversal of 6420252626 is 6262520246.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10631 + ... + 113813.

It is an arithmetic number, because the mean of its divisors is an integer number (614305944).

Almost surely, 2^6420252626 is an apocalyptic number.

6420252626 is a deficient number, since it is larger than the sum of its proper divisors (3408642478).

6420252626 is a wasteful number, since it uses less digits than its factorization.

6420252626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103825.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 6420252626 is about 80126.4789317489. The cubic root of 6420252626 is about 1858.5918954986.

The spelling of 6420252626 in words is "six billion, four hundred twenty million, two hundred fifty-two thousand, six hundred twenty-six".