15030123378 has 16 divisors (see below), whose sum is σ = 30072116640. Its totient is φ = 5008062816.

The previous prime is 15030123343. The next prime is 15030123397. The reversal of 15030123378 is 87332103051.

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, 478075 + ... + 508542.

It is an arithmetic number, because the mean of its divisors is an integer number (1879507290).

Almost surely, 2^15030123378 is an apocalyptic number.

15030123378 is an abundant number, since it is smaller than the sum of its proper divisors (15041993262).

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

15030123378 is a wasteful number, since it uses less digits than its factorization.

15030123378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989161.

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 15030123378 in words is "fifteen billion, thirty million, one hundred twenty-three thousand, three hundred seventy-eight".