26401499942 has 4 divisors (see below), whose sum is σ = 39602249916. Its totient is φ = 13200749970.

The previous prime is 26401499941. The next prime is 26401499981. The reversal of 26401499942 is 24999410462.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26401499941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6600374984 + ... + 6600374987.

It is an arithmetic number, because the mean of its divisors is an integer number (9900562479).

Almost surely, 2^26401499942 is an apocalyptic number.

26401499942 is a deficient number, since it is larger than the sum of its proper divisors (13200749974).

26401499942 is a wasteful number, since it uses less digits than its factorization.

26401499942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13200749973.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 26401499942 in words is "twenty-six billion, four hundred one million, four hundred ninety-nine thousand, nine hundred forty-two".