1877818397472 has 48 divisors (see below), whose sum is σ = 5476970328480. Its totient is φ = 625939465536.

The previous prime is 1877818397419. The next prime is 1877818397501. The reversal of 1877818397472 is 2747938187781.

1877818397472 is a `hidden beast` number, since 1 + 8 + 7 + 78 + 1 + 83 + 9 + 7 + 472 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 1877818397472.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086699598 + ... + 1086701325.

It is an arithmetic number, because the mean of its divisors is an integer number (114103548510).

Almost surely, 2^{1877818397472} is an apocalyptic number.

1877818397472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1877818397472 is an abundant number, since it is smaller than the sum of its proper divisors (3599151931008).

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

1877818397472 is a wasteful number, since it uses less digits than its factorization.

1877818397472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173400942 (or 2173400928 counting only the distinct ones).

The product of its digits is 265531392, while the sum is 72.

The spelling of 1877818397472 in words is "one trillion, eight hundred seventy-seven billion, eight hundred eighteen million, three hundred ninety-seven thousand, four hundred seventy-two".