642048525702 has 32 divisors (see below), whose sum is σ = 1441483528800. Its totient is φ = 211809821184.

The previous prime is 642048525667. The next prime is 642048525737. The reversal of 642048525702 is 207525840246.

642048525702 is a `hidden beast` number, since 6 + 4 + 20 + 4 + 8 + 52 + 570 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (642048525667) and next prime (642048525737).

It is a super-2 number, since 2×642048525702² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 61282327 + ... + 61292802.

It is an arithmetic number, because the mean of its divisors is an integer number (45046360275).

Almost surely, 2^642048525702 is an apocalyptic number.

642048525702 is an abundant number, since it is smaller than the sum of its proper divisors (799435003098).

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

642048525702 is a wasteful number, since it uses less digits than its factorization.

642048525702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122575237 (or 122575231 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 45.

The spelling of 642048525702 in words is "six hundred forty-two billion, forty-eight million, five hundred twenty-five thousand, seven hundred two".