15042019650 has 48 divisors (see below), whose sum is σ = 42633384384. Its totient is φ = 3438175680.

The previous prime is 15042019613. The next prime is 15042019667. The reversal of 15042019650 is 5691024051.

It is a super-2 number, since 2×15042019650² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7161817 + ... + 7163916.

It is an arithmetic number, because the mean of its divisors is an integer number (888195508).

Almost surely, 2^15042019650 is an apocalyptic number.

15042019650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15042019650 is an abundant number, since it is smaller than the sum of its proper divisors (27591364734).

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

15042019650 is a wasteful number, since it uses less digits than its factorization.

15042019650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14325755 (or 14325750 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 15042019650 in words is "fifteen billion, forty-two million, nineteen thousand, six hundred fifty".