2790678551 has 2 divisors, whose sum is σ = 2790678552. Its totient is φ = 2790678550.

The previous prime is 2790678547. The next prime is 2790678587. The reversal of 2790678551 is 1558760972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2790678551 - 2² = 2790678547 is a prime.

It is a super-2 number, since 2×2790678551² = 15575773550022919202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2790678551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2790678511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1395339275 + 1395339276.

It is an arithmetic number, because the mean of its divisors is an integer number (1395339276).

Almost surely, 2^2790678551 is an apocalyptic number.

2790678551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2790678551 is an equidigital number, since it uses as much as digits as its factorization.

2790678551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058400, while the sum is 50.

The square root of 2790678551 is about 52826.8733789915. The cubic root of 2790678551 is about 1407.8939352715.

The spelling of 2790678551 in words is "two billion, seven hundred ninety million, six hundred seventy-eight thousand, five hundred fifty-one".