702145780420 has 48 divisors (see below), whose sum is σ = 1701834559488. Its totient is φ = 238352169600.

The previous prime is 702145780327. The next prime is 702145780447. The reversal of 702145780420 is 24087541207.

702145780420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×702145780420² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24814212 + ... + 24842491.

It is an arithmetic number, because the mean of its divisors is an integer number (35454886656).

Almost surely, 2^702145780420 is an apocalyptic number.

702145780420 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

702145780420 is an abundant number, since it is smaller than the sum of its proper divisors (999688779068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

702145780420 is a wasteful number, since it uses less digits than its factorization.

702145780420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49656820 (or 49656818 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 40.

The spelling of 702145780420 in words is "seven hundred two billion, one hundred forty-five million, seven hundred eighty thousand, four hundred twenty".