641953362 has 16 divisors (see below), whose sum is σ = 1285371360. Its totient is φ = 213740352.

The previous prime is 641953357. The next prime is 641953369. The reversal of 641953362 is 263359146.

It is a self number, because there is not a number n which added to its sum of digits gives 641953362.

It is not an unprimeable number, because it can be changed into a prime (641953369) 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, 55287 + ... + 65882.

It is an arithmetic number, because the mean of its divisors is an integer number (80335710).

Almost surely, 2^641953362 is an apocalyptic number.

641953362 is an abundant number, since it is smaller than the sum of its proper divisors (643417998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641953362 is a wasteful number, since it uses less digits than its factorization.

641953362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122057.

The product of its digits is 116640, while the sum is 39.

The square root of 641953362 is about 25336.7985744056. The cubic root of 641953362 is about 862.6497336344.

The spelling of 641953362 in words is "six hundred forty-one million, nine hundred fifty-three thousand, three hundred sixty-two".