26778661032 has 32 divisors (see below), whose sum is σ = 67357378080. Its totient is φ = 8871456960.

The previous prime is 26778661031. The next prime is 26778661033. The reversal of 26778661032 is 23016687762.

It is an interprime number because it is at equal distance from previous prime (26778661031) and next prime (26778661033).

It is not an unprimeable number, because it can be changed into a prime (26778661031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3418719 + ... + 3426542.

It is an arithmetic number, because the mean of its divisors is an integer number (2104918065).

Almost surely, 2^26778661032 is an apocalyptic number.

It is an amenable number.

26778661032 is an abundant number, since it is smaller than the sum of its proper divisors (40578717048).

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

26778661032 is a wasteful number, since it uses less digits than its factorization.

26778661032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6845433 (or 6845429 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 26778661032 in words is "twenty-six billion, seven hundred seventy-eight million, six hundred sixty-one thousand, thirty-two".