215402023343542 has 16 divisors (see below), whose sum is σ = 370425471426720. Its totient is φ = 92023937866368.

The previous prime is 215402023343539. The next prime is 215402023343567. The reversal of 215402023343542 is 245343320204512.

215402023343542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 215402023343495 and 215402023343504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24267911667 + ... + 24267920542.

It is an arithmetic number, because the mean of its divisors is an integer number (23151591964170).

Almost surely, 2^{215402023343542} is an apocalyptic number.

215402023343542 is a deficient number, since it is larger than the sum of its proper divisors (155023448083178).

215402023343542 is a wasteful number, since it uses less digits than its factorization.

215402023343542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48535832535.

The product of its (nonzero) digits is 691200, while the sum is 40.

The spelling of 215402023343542 in words is "two hundred fifteen trillion, four hundred two billion, twenty-three million, three hundred forty-three thousand, five hundred forty-two".