19678017070 has 16 divisors (see below), whose sum is σ = 35919311328. Its totient is φ = 7760344480.

The previous prime is 19678017041. The next prime is 19678017113. The reversal of 19678017070 is 7071087691.

It is a super-2 number, since 2×19678017070² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19678017070.

It is a congruent number.

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, 13857049 + ... + 13858468.

It is an arithmetic number, because the mean of its divisors is an integer number (2244956958).

Almost surely, 2^19678017070 is an apocalyptic number.

19678017070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19678017070 is a deficient number, since it is larger than the sum of its proper divisors (16241294258).

19678017070 is a wasteful number, since it uses less digits than its factorization.

19678017070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27715595.

The product of its (nonzero) digits is 148176, while the sum is 46.

The spelling of 19678017070 in words is "nineteen billion, six hundred seventy-eight million, seventeen thousand, seventy".