2077947398172 has 24 divisors (see below), whose sum is σ = 4848569315856. Its totient is φ = 692645506048.

The previous prime is 2077947398159. The next prime is 2077947398231. The reversal of 2077947398172 is 2718937497702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2965078 + ... + 3598274.

It is an arithmetic number, because the mean of its divisors is an integer number (202023721494).

Almost surely, 2^{2077947398172} is an apocalyptic number.

It is an amenable number.

2077947398172 is an abundant number, since it is smaller than the sum of its proper divisors (2770621917684).

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

2077947398172 is a wasteful number, since it uses less digits than its factorization.

2077947398172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906677 (or 906675 counting only the distinct ones).

The product of its (nonzero) digits is 74680704, while the sum is 66.

The spelling of 2077947398172 in words is "two trillion, seventy-seven billion, nine hundred forty-seven million, three hundred ninety-eight thousand, one hundred seventy-two".