2511397667 has 2 divisors, whose sum is σ = 2511397668. Its totient is φ = 2511397666.

The previous prime is 2511397663. The next prime is 2511397697. The reversal of 2511397667 is 7667931152.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2511397667 - 2² = 2511397663 is a prime.

It is not a weakly prime, because it can be changed into another prime (2511397663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1255698833 + 1255698834.

It is an arithmetic number, because the mean of its divisors is an integer number (1255698834).

Almost surely, 2^2511397667 is an apocalyptic number.

2511397667 is a deficient number, since it is larger than the sum of its proper divisors (1).

2511397667 is an equidigital number, since it uses as much as digits as its factorization.

2511397667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 47.

The square root of 2511397667 is about 50113.8470584728. The cubic root of 2511397667 is about 1359.2682170066.

The spelling of 2511397667 in words is "two billion, five hundred eleven million, three hundred ninety-seven thousand, six hundred sixty-seven".