49118199437 has 2 divisors, whose sum is σ = 49118199438. Its totient is φ = 49118199436.

The previous prime is 49118199421. The next prime is 49118199479. The reversal of 49118199437 is 73499181194.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35011648996 + 14106550441 = 187114^2 + 118771^2 .

It is a cyclic number.

It is not a de Polignac number, because 49118199437 - 2⁴ = 49118199421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49118199037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24559099718 + 24559099719.

It is an arithmetic number, because the mean of its divisors is an integer number (24559099719).

Almost surely, 2^49118199437 is an apocalyptic number.

It is an amenable number.

49118199437 is a deficient number, since it is larger than the sum of its proper divisors (1).

49118199437 is an equidigital number, since it uses as much as digits as its factorization.

49118199437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 56.

The spelling of 49118199437 in words is "forty-nine billion, one hundred eighteen million, one hundred ninety-nine thousand, four hundred thirty-seven".