642543270274 has 32 divisors (see below), whose sum is σ = 985462283520. Its totient is φ = 314123443200.

The previous prime is 642543270263. The next prime is 642543270301. The reversal of 642543270274 is 472072345246.

It is a super-2 number, since 2×642543270274² (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, 16629922 + ... + 16668514.

It is an arithmetic number, because the mean of its divisors is an integer number (30795696360).

Almost surely, 2^642543270274 is an apocalyptic number.

642543270274 is a deficient number, since it is larger than the sum of its proper divisors (342919013246).

642543270274 is a wasteful number, since it uses less digits than its factorization.

642543270274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39466.

The product of its (nonzero) digits is 2257920, while the sum is 46.

The spelling of 642543270274 in words is "six hundred forty-two billion, five hundred forty-three million, two hundred seventy thousand, two hundred seventy-four".