26407070649 has 48 divisors (see below), whose sum is σ = 41289730560. Its totient is φ = 16199654400.

The previous prime is 26407070639. The next prime is 26407070687. The reversal of 26407070649 is 94607070462.

It is not a de Polignac number, because 26407070649 - 2²⁰ = 26406022073 is a prime.

It is a super-2 number, since 2×26407070649² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26407070639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12949972 + ... + 12952010.

It is an arithmetic number, because the mean of its divisors is an integer number (860202720).

Almost surely, 2^26407070649 is an apocalyptic number.

It is an amenable number.

26407070649 is a deficient number, since it is larger than the sum of its proper divisors (14882659911).

26407070649 is a wasteful number, since it uses less digits than its factorization.

26407070649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3910 (or 3907 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 26407070649 in words is "twenty-six billion, four hundred seven million, seventy thousand, six hundred forty-nine".