19677078733 has 8 divisors (see below), whose sum is σ = 21259729568. Its totient is φ = 18104289264.

The previous prime is 19677078727. The next prime is 19677078767. The reversal of 19677078733 is 33787077691.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19677078733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19677078133) 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, 2461191 + ... + 2469172.

It is an arithmetic number, because the mean of its divisors is an integer number (2657466196).

Almost surely, 2^19677078733 is an apocalyptic number.

19677078733 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

19677078733 is a deficient number, since it is larger than the sum of its proper divisors (1582650835).

19677078733 is a wasteful number, since it uses less digits than its factorization.

19677078733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4930683.

The product of its (nonzero) digits is 9335088, while the sum is 58.

The spelling of 19677078733 in words is "nineteen billion, six hundred seventy-seven million, seventy-eight thousand, seven hundred thirty-three".