402501641500 has 48 divisors (see below), whose sum is σ = 1004644105920. Its totient is φ = 138000561600.

The previous prime is 402501641471. The next prime is 402501641501. The reversal of 402501641500 is 5146105204.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402501641501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57496735 + ... + 57503734.

It is an arithmetic number, because the mean of its divisors is an integer number (20930085540).

Almost surely, 2^402501641500 is an apocalyptic number.

It is an amenable number.

402501641500 is an abundant number, since it is smaller than the sum of its proper divisors (602142464420).

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

402501641500 is a wasteful number, since it uses less digits than its factorization.

402501641500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115000495 (or 115000483 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 402501641500 its reverse (5146105204), we get a palindrome (407647746704).

The spelling of 402501641500 in words is "four hundred two billion, five hundred one million, six hundred forty-one thousand, five hundred".