2778551012875 has 32 divisors (see below), whose sum is σ = 3808259582400. Its totient is φ = 2007202048000.

The previous prime is 2778551012873. The next prime is 2778551012933. The reversal of 2778551012875 is 5782101558772.

It is not a de Polignac number, because 2778551012875 - 2¹ = 2778551012873 is a prime.

It is a super-2 number, since 2×2778551012875² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2778551012873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6576214 + ... + 6985963.

It is an arithmetic number, because the mean of its divisors is an integer number (119008111950).

Almost surely, 2^{2778551012875} is an apocalyptic number.

2778551012875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2778551012875 is a deficient number, since it is larger than the sum of its proper divisors (1029708569525).

2778551012875 is a wasteful number, since it uses less digits than its factorization.

2778551012875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13562352 (or 13562342 counting only the distinct ones).

The product of its (nonzero) digits is 10976000, while the sum is 58.

The spelling of 2778551012875 in words is "two trillion, seven hundred seventy-eight billion, five hundred fifty-one million, twelve thousand, eight hundred seventy-five".