26714678634 has 64 divisors (see below), whose sum is σ = 68664314880. Its totient is φ = 7540795440.

The previous prime is 26714678633. The next prime is 26714678657. The reversal of 26714678634 is 43687641762.

26714678634 is a `hidden beast` number, since 2 + 6 + 71 + 467 + 86 + 34 = 666.

It is a super-2 number, since 2×26714678634² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26714678633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 394372 + ... + 457119.

It is an arithmetic number, because the mean of its divisors is an integer number (1072879920).

Almost surely, 2^26714678634 is an apocalyptic number.

26714678634 is an abundant number, since it is smaller than the sum of its proper divisors (41949636246).

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

26714678634 is a wasteful number, since it uses less digits than its factorization.

26714678634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851592 (or 851586 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 54.

The spelling of 26714678634 in words is "twenty-six billion, seven hundred fourteen million, six hundred seventy-eight thousand, six hundred thirty-four".