1902940450488 has 256 divisors, whose sum is σ = 6937127424000. Its totient is φ = 468255945600.

The previous prime is 1902940450487. The next prime is 1902940450577. The reversal of 1902940450488 is 8840540492091.

It is a happy number.

1902940450488 is a `hidden beast` number, since 1 + 90 + 2 + 9 + 40 + 4 + 504 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1902940450487) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2694898 + ... + 3326913.

It is an arithmetic number, because the mean of its divisors is an integer number (27098154000).

Almost surely, 2^{1902940450488} is an apocalyptic number.

1902940450488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1902940450488 is an abundant number, since it is smaller than the sum of its proper divisors (5034186973512).

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

1902940450488 is a wasteful number, since it uses less digits than its factorization.

1902940450488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6021863 (or 6021853 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 1902940450488 in words is "one trillion, nine hundred two billion, nine hundred forty million, four hundred fifty thousand, four hundred eighty-eight".