15994782070 has 16 divisors (see below), whose sum is σ = 28796268528. Its totient is φ = 6396654880.

The previous prime is 15994782053. The next prime is 15994782077. The reversal of 15994782070 is 7028749951.

It is a junction number, because it is equal to n+sod(n) for n = 15994781999 and 15994782017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15994782077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102949 + ... + 206368.

It is an arithmetic number, because the mean of its divisors is an integer number (1799766783).

Almost surely, 2^15994782070 is an apocalyptic number.

15994782070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15994782070 is a deficient number, since it is larger than the sum of its proper divisors (12801486458).

15994782070 is a wasteful number, since it uses less digits than its factorization.

15994782070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314495.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 15994782070 in words is "fifteen billion, nine hundred ninety-four million, seven hundred eighty-two thousand, seventy".