215436942092 has 24 divisors (see below), whose sum is σ = 393061361616. Its totient is φ = 103228227648.

The previous prime is 215436942031. The next prime is 215436942107. The reversal of 215436942092 is 290249634512.

It is a super-2 number, since 2×215436942092² (a number of 23 digits) contains 22 as substring.

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, 11807303 + ... + 11825534.

It is an arithmetic number, because the mean of its divisors is an integer number (16377556734).

Almost surely, 2^215436942092 is an apocalyptic number.

It is an amenable number.

215436942092 is a deficient number, since it is larger than the sum of its proper divisors (177624419524).

215436942092 is a wasteful number, since it uses less digits than its factorization.

215436942092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23632937 (or 23632935 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 215436942092 in words is "two hundred fifteen billion, four hundred thirty-six million, nine hundred forty-two thousand, ninety-two".