1642350755381 has 16 divisors (see below), whose sum is σ = 1879855534080. Its totient is φ = 1405568015280.

The previous prime is 1642350755327. The next prime is 1642350755399. The reversal of 1642350755381 is 1835570532461.

It is a cyclic number.

It is not a de Polignac number, because 1642350755381 - 2¹⁴ = 1642350738997 is a prime.

It is a super-2 number, since 2×1642350755381² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642350755581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16588616 + ... + 16687326.

It is an arithmetic number, because the mean of its divisors is an integer number (117490970880).

Almost surely, 2^{1642350755381} is an apocalyptic number.

It is an amenable number.

1642350755381 is a deficient number, since it is larger than the sum of its proper divisors (237504778699).

1642350755381 is an equidigital number, since it uses as much as digits as its factorization.

1642350755381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102344.

The product of its (nonzero) digits is 3024000, while the sum is 50.

The spelling of 1642350755381 in words is "one trillion, six hundred forty-two billion, three hundred fifty million, seven hundred fifty-five thousand, three hundred eighty-one".