1642877170401 has 32 divisors (see below), whose sum is σ = 2330031882240. Its totient is φ = 1026081858816.

The previous prime is 1642877170399. The next prime is 1642877170409. The reversal of 1642877170401 is 1040717782461.

It is not a de Polignac number, because 1642877170401 - 2¹ = 1642877170399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1642877170409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77312160 + ... + 77333406.

It is an arithmetic number, because the mean of its divisors is an integer number (72813496320).

Almost surely, 2^{1642877170401} is an apocalyptic number.

It is an amenable number.

1642877170401 is a deficient number, since it is larger than the sum of its proper divisors (687154711839).

1642877170401 is a wasteful number, since it uses less digits than its factorization.

1642877170401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28173.

The product of its (nonzero) digits is 526848, while the sum is 48.

The spelling of 1642877170401 in words is "one trillion, six hundred forty-two billion, eight hundred seventy-seven million, one hundred seventy thousand, four hundred one".