30750492689 has 16 divisors (see below), whose sum is σ = 37662521088. Its totient is φ = 24530185152.

The previous prime is 30750492671. The next prime is 30750492737. The reversal of 30750492689 is 98629405703.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30750492689 is a prime.

It is a super-3 number, since 3×30750492689³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30750492689.

It is not an unprimeable number, because it can be changed into a prime (30750492649) 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, 2575082 + ... + 2586995.

It is an arithmetic number, because the mean of its divisors is an integer number (2353907568).

Almost surely, 2^30750492689 is an apocalyptic number.

It is an amenable number.

30750492689 is a deficient number, since it is larger than the sum of its proper divisors (6912028399).

30750492689 is a wasteful number, since it uses less digits than its factorization.

30750492689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5162144.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 30750492689 in words is "thirty billion, seven hundred fifty million, four hundred ninety-two thousand, six hundred eighty-nine".