402577350506 has 16 divisors (see below), whose sum is σ = 639404907264. Its totient is φ = 189443024064.

The previous prime is 402577350481. The next prime is 402577350509. The reversal of 402577350506 is 605053775204.

It is not an unprimeable number, because it can be changed into a prime (402577350509) 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, 1304321 + ... + 1583163.

It is an arithmetic number, because the mean of its divisors is an integer number (39962806704).

Almost surely, 2^402577350506 is an apocalyptic number.

402577350506 is a deficient number, since it is larger than the sum of its proper divisors (236827556758).

402577350506 is a wasteful number, since it uses less digits than its factorization.

402577350506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321325.

The product of its (nonzero) digits is 882000, while the sum is 44.

The spelling of 402577350506 in words is "four hundred two billion, five hundred seventy-seven million, three hundred fifty thousand, five hundred six".