30842791951 has 2 divisors, whose sum is σ = 30842791952. Its totient is φ = 30842791950.

The previous prime is 30842791939. The next prime is 30842791957. The reversal of 30842791951 is 15919724803.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30842791951 - 2¹³ = 30842783759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30842791895 and 30842791904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30842791957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15421395975 + 15421395976.

It is an arithmetic number, because the mean of its divisors is an integer number (15421395976).

Almost surely, 2^30842791951 is an apocalyptic number.

30842791951 is a deficient number, since it is larger than the sum of its proper divisors (1).

30842791951 is an equidigital number, since it uses as much as digits as its factorization.

30842791951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 30842791951 in words is "thirty billion, eight hundred forty-two million, seven hundred ninety-one thousand, nine hundred fifty-one".