2777779410868 has 72 divisors (see below), whose sum is σ = 6169264111584. Its totient is φ = 1082176401600.

The previous prime is 2777779410839. The next prime is 2777779410877. The reversal of 2777779410868 is 8680149777772.

It is a self number, because there is not a number n which added to its sum of digits gives 2777779410868.

It is a congruent number.

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, 38709630 + ... + 38781322.

It is an arithmetic number, because the mean of its divisors is an integer number (85684223772).

Almost surely, 2^{2777779410868} is an apocalyptic number.

2777779410868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2777779410868 is an abundant number, since it is smaller than the sum of its proper divisors (3391484700716).

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

2777779410868 is a wasteful number, since it uses less digits than its factorization.

2777779410868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89693 (or 89684 counting only the distinct ones).

The product of its (nonzero) digits is 464679936, while the sum is 73.

The spelling of 2777779410868 in words is "two trillion, seven hundred seventy-seven billion, seven hundred seventy-nine million, four hundred ten thousand, eight hundred sixty-eight".