49983661619 has 2 divisors, whose sum is σ = 49983661620. Its totient is φ = 49983661618.

The previous prime is 49983661537. The next prime is 49983661697. The reversal of 49983661619 is 91616638994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49983661619 - 2³² = 45688694323 is a prime.

It is a super-2 number, since 2×49983661619² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49983661699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24991830809 + 24991830810.

It is an arithmetic number, because the mean of its divisors is an integer number (24991830810).

Almost surely, 2^49983661619 is an apocalyptic number.

49983661619 is a deficient number, since it is larger than the sum of its proper divisors (1).

49983661619 is an equidigital number, since it uses as much as digits as its factorization.

49983661619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15116544, while the sum is 62.

The spelling of 49983661619 in words is "forty-nine billion, nine hundred eighty-three million, six hundred sixty-one thousand, six hundred nineteen".