1215445011042 has 16 divisors (see below), whose sum is σ = 2509305829632. Its totient is φ = 392079035760.

The previous prime is 1215445010993. The next prime is 1215445011119. The reversal of 1215445011042 is 2401105445121.

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, 3267325113 + ... + 3267325484.

It is an arithmetic number, because the mean of its divisors is an integer number (156831614352).

Almost surely, 2^{1215445011042} is an apocalyptic number.

1215445011042 is an abundant number, since it is smaller than the sum of its proper divisors (1293860818590).

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

1215445011042 is a wasteful number, since it uses less digits than its factorization.

1215445011042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6534650633.

The product of its (nonzero) digits is 6400, while the sum is 30.

The spelling of 1215445011042 in words is "one trillion, two hundred fifteen billion, four hundred forty-five million, eleven thousand, forty-two".