26215323561042 has 64 divisors (see below), whose sum is σ = 65368963021824. Its totient is φ = 6809082920640.

The previous prime is 26215323560947. The next prime is 26215323561047. The reversal of 26215323561042 is 24016532351262.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 26215323560985 and 26215323561003.

It is not an unprimeable number, because it can be changed into a prime (26215323561047) 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, 37986928 + ... + 38670884.

It is an arithmetic number, because the mean of its divisors is an integer number (1021390047216).

Almost surely, 2^{26215323561042} is an apocalyptic number.

26215323561042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

26215323561042 is an abundant number, since it is smaller than the sum of its proper divisors (39153639460782).

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

26215323561042 is a wasteful number, since it uses less digits than its factorization.

26215323561042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766943.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 26215323561042 in words is "twenty-six trillion, two hundred fifteen billion, three hundred twenty-three million, five hundred sixty-one thousand, forty-two".