58121949397 has 2 divisors, whose sum is σ = 58121949398. Its totient is φ = 58121949396.

The previous prime is 58121949359. The next prime is 58121949407. The reversal of 58121949397 is 79394912185.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29169565681 + 28952383716 = 170791^2 + 170154^2 .

It is a cyclic number.

It is not a de Polignac number, because 58121949397 - 2⁷ = 58121949269 is a prime.

It is a super-2 number, since 2×58121949397² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (58121946397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29060974698 + 29060974699.

It is an arithmetic number, because the mean of its divisors is an integer number (29060974699).

Almost surely, 2^58121949397 is an apocalyptic number.

It is an amenable number.

58121949397 is a deficient number, since it is larger than the sum of its proper divisors (1).

58121949397 is an equidigital number, since it uses as much as digits as its factorization.

58121949397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 58.

The spelling of 58121949397 in words is "fifty-eight billion, one hundred twenty-one million, nine hundred forty-nine thousand, three hundred ninety-seven".