30696217919 has 16 divisors (see below), whose sum is σ = 32073842592. Its totient is φ = 29351282688.

The previous prime is 30696217901. The next prime is 30696217927. The reversal of 30696217919 is 91971269603.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30696217919 is a prime.

It is a super-2 number, since 2×30696217919² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30696217219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1026767 + ... + 1056239.

It is an arithmetic number, because the mean of its divisors is an integer number (2004615162).

Almost surely, 2^30696217919 is an apocalyptic number.

30696217919 is a deficient number, since it is larger than the sum of its proper divisors (1377624673).

30696217919 is a wasteful number, since it uses less digits than its factorization.

30696217919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30026.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The spelling of 30696217919 in words is "thirty billion, six hundred ninety-six million, two hundred seventeen thousand, nine hundred nineteen".