26542957494 has 16 divisors (see below), whose sum is σ = 53379209520. Its totient is φ = 8798770080.

The previous prime is 26542957471. The next prime is 26542957499. The reversal of 26542957494 is 49475924562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26542957499) 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, 12219429 + ... + 12221600.

It is an arithmetic number, because the mean of its divisors is an integer number (3336200595).

Almost surely, 2^26542957494 is an apocalyptic number.

26542957494 is an abundant number, since it is smaller than the sum of its proper divisors (26836252026).

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

26542957494 is a wasteful number, since it uses less digits than its factorization.

26542957494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24441215.

The product of its digits is 21772800, while the sum is 57.

The spelling of 26542957494 in words is "twenty-six billion, five hundred forty-two million, nine hundred fifty-seven thousand, four hundred ninety-four".