26453215542 has 16 divisors (see below), whose sum is σ = 56976156720. Its totient is φ = 8139450912.

The previous prime is 26453215541. The next prime is 26453215543. The reversal of 26453215542 is 24551235462.

It is an interprime number because it is at equal distance from previous prime (26453215541) and next prime (26453215543).

It is a super-2 number, since 2×26453215542² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 26453215542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26453215541) 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, 169571817 + ... + 169571972.

It is an arithmetic number, because the mean of its divisors is an integer number (3561009795).

Almost surely, 2^26453215542 is an apocalyptic number.

26453215542 is an abundant number, since it is smaller than the sum of its proper divisors (30522941178).

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

26453215542 is a wasteful number, since it uses less digits than its factorization.

26453215542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339143807.

The product of its digits is 288000, while the sum is 39.

The spelling of 26453215542 in words is "twenty-six billion, four hundred fifty-three million, two hundred fifteen thousand, five hundred forty-two".