215270087242 has 16 divisors (see below), whose sum is σ = 379008339840. Its totient is φ = 89765132688.

The previous prime is 215270087237. The next prime is 215270087309. The reversal of 215270087242 is 242780072512.

It is a super-2 number, since 2×215270087242² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 215270087195 and 215270087204.

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, 207789142 + ... + 207790177.

It is an arithmetic number, because the mean of its divisors is an integer number (23688021240).

Almost surely, 2^215270087242 is an apocalyptic number.

215270087242 is a deficient number, since it is larger than the sum of its proper divisors (163738252598).

215270087242 is a wasteful number, since it uses less digits than its factorization.

215270087242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415579365.

The product of its (nonzero) digits is 125440, while the sum is 40.

The spelling of 215270087242 in words is "two hundred fifteen billion, two hundred seventy million, eighty-seven thousand, two hundred forty-two".