7421025064 has 32 divisors (see below), whose sum is σ = 14423767200. Its totient is φ = 3575212480.

The previous prime is 7421025037. The next prime is 7421025083. The reversal of 7421025064 is 4605201247.

It is a super-2 number, since 2×7421025064² (a number of 21 digits) contains 22 as substring.

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, 81339 + ... + 146485.

It is an arithmetic number, because the mean of its divisors is an integer number (450742725).

Almost surely, 2^7421025064 is an apocalyptic number.

It is an amenable number.

7421025064 is a deficient number, since it is larger than the sum of its proper divisors (7002742136).

7421025064 is a wasteful number, since it uses less digits than its factorization.

7421025064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65673 (or 65669 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 7421025064 is about 86145.3716922738. The cubic root of 7421025064 is about 1950.5389756256.

The spelling of 7421025064 in words is "seven billion, four hundred twenty-one million, twenty-five thousand, sixty-four".