58791697421 has 2 divisors, whose sum is σ = 58791697422. Its totient is φ = 58791697420.

The previous prime is 58791697369. The next prime is 58791697469. The reversal of 58791697421 is 12479619785.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47510920900 + 11280776521 = 217970^2 + 106211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-58791697421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (58791697021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29395848710 + 29395848711.

It is an arithmetic number, because the mean of its divisors is an integer number (29395848711).

Almost surely, 2^58791697421 is an apocalyptic number.

It is an amenable number.

58791697421 is a deficient number, since it is larger than the sum of its proper divisors (1).

58791697421 is an equidigital number, since it uses as much as digits as its factorization.

58791697421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 59.

The spelling of 58791697421 in words is "fifty-eight billion, seven hundred ninety-one million, six hundred ninety-seven thousand, four hundred twenty-one".