642274314331 has 8 divisors (see below), whose sum is σ = 691688058320. Its totient is φ = 592861717152.

The previous prime is 642274314271. The next prime is 642274314397. The reversal of 642274314331 is 133413472246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 642274314331 - 2⁷ = 642274314203 is a prime.

It is a super-2 number, since 2×642274314331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (642274314631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1139161 + ... + 1606933.

It is an arithmetic number, because the mean of its divisors is an integer number (86461007290).

Almost surely, 2^642274314331 is an apocalyptic number.

642274314331 is a deficient number, since it is larger than the sum of its proper divisors (49413743989).

642274314331 is a wasteful number, since it uses less digits than its factorization.

642274314331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573405.

The product of its digits is 290304, while the sum is 40.

Adding to 642274314331 its reverse (133413472246), we get a palindrome (775687786577).

The spelling of 642274314331 in words is "six hundred forty-two billion, two hundred seventy-four million, three hundred fourteen thousand, three hundred thirty-one".