26400006402042 has 80 divisors (see below), whose sum is σ = 66334531021920. Its totient is φ = 6962639001696.

The previous prime is 26400006402041. The next prime is 26400006402103. The reversal of 26400006402042 is 24020460000462.

It is a super-2 number, since 2×26400006402042² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26400006402041) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 70296192 + ... + 70670747.

It is an arithmetic number, because the mean of its divisors is an integer number (829181637774).

Almost surely, 2^{26400006402042} is an apocalyptic number.

26400006402042 is an abundant number, since it is smaller than the sum of its proper divisors (39934524619878).

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

26400006402042 is a wasteful number, since it uses less digits than its factorization.

26400006402042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140966985 (or 140966964 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The spelling of 26400006402042 in words is "twenty-six trillion, four hundred billion, six million, four hundred two thousand, forty-two".