402764387445 has 768 divisors, whose sum is σ = 963716382720. Its totient is φ = 157212057600.

The previous prime is 402764387411. The next prime is 402764387453. The reversal of 402764387445 is 544783467204.

402764387445 is a `hidden beast` number, since 40 + 27 + 64 + 3 + 87 + 445 = 666.

It is not a de Polignac number, because 402764387445 - 2³⁰ = 401690645621 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 402764387391 and 402764387400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 7599328039 + ... + 7599328091.

It is an arithmetic number, because the mean of its divisors is an integer number (1254839040).

Almost surely, 2^402764387445 is an apocalyptic number.

402764387445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

402764387445 is an abundant number, since it is smaller than the sum of its proper divisors (560951995275).

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

402764387445 is a wasteful number, since it uses less digits than its factorization.

402764387445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 54.

The spelling of 402764387445 in words is "four hundred two billion, seven hundred sixty-four million, three hundred eighty-seven thousand, four hundred forty-five".