15780934942 has 8 divisors (see below), whose sum is σ = 23674104000. Its totient is φ = 7889566944.

The previous prime is 15780934889. The next prime is 15780934987. The reversal of 15780934942 is 24943908751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×15780934942³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15780934942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428142 + ... + 463537.

It is an arithmetic number, because the mean of its divisors is an integer number (2959263000).

Almost surely, 2^15780934942 is an apocalyptic number.

15780934942 is a deficient number, since it is larger than the sum of its proper divisors (7893169058).

15780934942 is an equidigital number, since it uses as much as digits as its factorization.

15780934942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900530.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 15780934942 in words is "fifteen billion, seven hundred eighty million, nine hundred thirty-four thousand, nine hundred forty-two".