1864882402872 has 32 divisors (see below), whose sum is σ = 4677101252880. Its totient is φ = 619641434880.

The previous prime is 1864882402871. The next prime is 1864882402913. The reversal of 1864882402872 is 2782042884681.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1864882402871) 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, 124119379 + ... + 124134402.

Almost surely, 2^{1864882402872} is an apocalyptic number.

1864882402872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1864882402872 is an abundant number, since it is smaller than the sum of its proper divisors (2812218850008).

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

1864882402872 is a wasteful number, since it uses less digits than its factorization.

1864882402872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248254103 (or 248254099 counting only the distinct ones).

The product of its (nonzero) digits is 22020096, while the sum is 60.

The spelling of 1864882402872 in words is "one trillion, eight hundred sixty-four billion, eight hundred eighty-two million, four hundred two thousand, eight hundred seventy-two".