1877717981952 has 216 divisors, whose sum is σ = 5706677121600. Its totient is φ = 592150984704.

The previous prime is 1877717981897. The next prime is 1877717981977. The reversal of 1877717981952 is 2591897177781.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32321443 + ... + 32379485.

Almost surely, 2^{1877717981952} is an apocalyptic number.

1877717981952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1877717981952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2853338560800).

1877717981952 is an abundant number, since it is smaller than the sum of its proper divisors (3828959139648).

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

1877717981952 is a wasteful number, since it uses less digits than its factorization.

1877717981952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58823 (or 58806 counting only the distinct ones).

The product of its digits is 124467840, while the sum is 72.

The spelling of 1877717981952 in words is "one trillion, eight hundred seventy-seven billion, seven hundred seventeen million, nine hundred eighty-one thousand, nine hundred fifty-two".