26161085730 has 64 divisors (see below), whose sum is σ = 70556209920. Its totient is φ = 6159664896.

The previous prime is 26161085651. The next prime is 26161085737. The reversal of 26161085730 is 3758016162.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (26161085737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1449285 + ... + 1467224.

It is an arithmetic number, because the mean of its divisors is an integer number (1102440780).

Almost surely, 2^26161085730 is an apocalyptic number.

26161085730 is an abundant number, since it is smaller than the sum of its proper divisors (44395124190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26161085730 is a wasteful number, since it uses less digits than its factorization.

26161085730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916555.

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 26161085730 in words is "twenty-six billion, one hundred sixty-one million, eighty-five thousand, seven hundred thirty".