2590997865 has 16 divisors (see below), whose sum is σ = 4152601728. Its totient is φ = 1379530496.

The previous prime is 2590997807. The next prime is 2590997869. The reversal of 2590997865 is 5687990952.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2590997865 - 2⁷ = 2590997737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2590997799 and 2590997808.

It is not an unprimeable number, because it can be changed into a prime (2590997869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136749 + ... + 154538.

It is an arithmetic number, because the mean of its divisors is an integer number (259537608).

Almost surely, 2^2590997865 is an apocalyptic number.

It is an amenable number.

2590997865 is a deficient number, since it is larger than the sum of its proper divisors (1561603863).

2590997865 is a wasteful number, since it uses less digits than its factorization.

2590997865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291888.

The product of its (nonzero) digits is 12247200, while the sum is 60.

The square root of 2590997865 is about 50901.8453987672. The cubic root of 2590997865 is about 1373.4800376566.

The spelling of 2590997865 in words is "two billion, five hundred ninety million, nine hundred ninety-seven thousand, eight hundred sixty-five".