641435755051 has 32 divisors (see below), whose sum is σ = 836271475200. Its totient is φ = 477442791936.

The previous prime is 641435755031. The next prime is 641435755087. The reversal of 641435755051 is 150557534146.

It is a cyclic number.

It is not a de Polignac number, because 641435755051 - 2²¹ = 641433657899 is a prime.

It is a super-2 number, since 2×641435755051² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641435754992 and 641435755010.

It is not an unprimeable number, because it can be changed into a prime (641435755021) 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, 3415600 + ... + 3598498.

It is an arithmetic number, because the mean of its divisors is an integer number (26133483600).

Almost surely, 2^641435755051 is an apocalyptic number.

641435755051 is a deficient number, since it is larger than the sum of its proper divisors (194835720149).

641435755051 is a wasteful number, since it uses less digits than its factorization.

641435755051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185203.

The product of its (nonzero) digits is 1260000, while the sum is 46.

The spelling of 641435755051 in words is "six hundred forty-one billion, four hundred thirty-five million, seven hundred fifty-five thousand, fifty-one".