642370155643135 has 16 divisors (see below), whose sum is σ = 811570705797600. Its totient is φ = 486755496654336.

The previous prime is 642370155643109. The next prime is 642370155643141. The reversal of 642370155643135 is 531346551073246.

642370155643135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 642370155643135 - 2¹⁵ = 642370155610367 is a prime.

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, 648554014 + ... + 649543723.

It is an arithmetic number, because the mean of its divisors is an integer number (50723169112350).

Almost surely, 2^{642370155643135} is an apocalyptic number.

642370155643135 is a deficient number, since it is larger than the sum of its proper divisors (169200550154465).

642370155643135 is a wasteful number, since it uses less digits than its factorization.

642370155643135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298102970.

The product of its (nonzero) digits is 27216000, while the sum is 55.

The spelling of 642370155643135 in words is "six hundred forty-two trillion, three hundred seventy billion, one hundred fifty-five million, six hundred forty-three thousand, one hundred thirty-five".