402818729651 has 12 divisors (see below), whose sum is σ = 437998282920. Its totient is φ = 370289761920.

The previous prime is 402818729627. The next prime is 402818729669. The reversal of 402818729651 is 156927818204.

It is not a de Polignac number, because 402818729651 - 2⁶ = 402818729587 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402818729593 and 402818729602.

It is not an unprimeable number, because it can be changed into a prime (402818722651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4904381 + ... + 4985838.

It is an arithmetic number, because the mean of its divisors is an integer number (36499856910).

Almost surely, 2^402818729651 is an apocalyptic number.

402818729651 is a deficient number, since it is larger than the sum of its proper divisors (35179553269).

402818729651 is a wasteful number, since it uses less digits than its factorization.

402818729651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9890486 (or 9890473 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 402818729651 in words is "four hundred two billion, eight hundred eighteen million, seven hundred twenty-nine thousand, six hundred fifty-one".