26345002690 has 32 divisors (see below), whose sum is σ = 48234412800. Its totient is φ = 10357502400.

The previous prime is 26345002657. The next prime is 26345002699. The reversal of 26345002690 is 9620054362.

26345002690 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×26345002690² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26345002699) 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, 837955 + ... + 868825.

It is an arithmetic number, because the mean of its divisors is an integer number (1507325400).

Almost surely, 2^26345002690 is an apocalyptic number.

26345002690 is a deficient number, since it is larger than the sum of its proper divisors (21889410110).

26345002690 is a wasteful number, since it uses less digits than its factorization.

26345002690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32338.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 26345002690 in words is "twenty-six billion, three hundred forty-five million, two thousand, six hundred ninety".