641174001953 has 8 divisors (see below), whose sum is σ = 649486022400. Its totient is φ = 632866879008.

The previous prime is 641174001821. The next prime is 641174001991. The reversal of 641174001953 is 359100471146.

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

It is not a de Polignac number, because 641174001953 - 2¹⁸ = 641173739809 is a prime.

It is a super-2 number, since 2×641174001953² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 641174001953.

It is not an unprimeable number, because it can be changed into a prime (641174001253) 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, 960476 + ... + 1484877.

It is an arithmetic number, because the mean of its divisors is an integer number (81185752800).

Almost surely, 2^641174001953 is an apocalyptic number.

It is an amenable number.

641174001953 is a deficient number, since it is larger than the sum of its proper divisors (8312020447).

641174001953 is a wasteful number, since it uses less digits than its factorization.

641174001953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448751.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 641174001953 in words is "six hundred forty-one billion, one hundred seventy-four million, one thousand, nine hundred fifty-three".