2630439590769 has 27 divisors (see below), whose sum is σ = 3945655982073. Its totient is φ = 1753538813244.

The previous prime is 2630439590711. The next prime is 2630439590797. The reversal of 2630439590769 is 9670959340362.

The square root of 2630439590769 is 1621863.

It is a perfect power (a square), and thus also a powerful number.

2630439590769 is a `hidden beast` number, since 2 + 6 + 3 + 0 + 4 + 39 + 590 + 7 + 6 + 9 = 666.

It is a tau number, because it is divible by the number of its divisors (27).

It is not a de Polignac number, because 2630439590769 - 2²¹ = 2630437493617 is a prime.

It is a super-2 number, since 2×2630439590769² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2630439590969) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 131360892 + ... + 131380914.

Almost surely, 2^{2630439590769} is an apocalyptic number.

2630439590769 is the 1621863-rd square number.

2630439590769 is the 810932-nd centered octagonal number.

It is an amenable number.

2630439590769 is a deficient number, since it is larger than the sum of its proper divisors (1315216391304).

2630439590769 is an frugal number, since it uses more digits than its factorization.

2630439590769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40070 (or 20026 counting only the distinct ones).

The product of its (nonzero) digits is 66134880, while the sum is 63.

The spelling of 2630439590769 in words is "two trillion, six hundred thirty billion, four hundred thirty-nine million, five hundred ninety thousand, seven hundred sixty-nine".