2689480718531 has 2 divisors, whose sum is σ = 2689480718532. Its totient is φ = 2689480718530.

The previous prime is 2689480718447. The next prime is 2689480718537. The reversal of 2689480718531 is 1358170849862.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2689480718531 is a prime.

It is a super-2 number, since 2×2689480718531² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2689480718537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1344740359265 + 1344740359266.

It is an arithmetic number, because the mean of its divisors is an integer number (1344740359266).

It is a 2-persistent number, because it is pandigital, and so is 2⋅2689480718531 = 5378961437062, but 3⋅2689480718531 = 8068442155593 is not.

Almost surely, 2^{2689480718531} is an apocalyptic number.

2689480718531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2689480718531 is an equidigital number, since it uses as much as digits as its factorization.

2689480718531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23224320, while the sum is 62.

The spelling of 2689480718531 in words is "two trillion, six hundred eighty-nine billion, four hundred eighty million, seven hundred eighteen thousand, five hundred thirty-one".