99619002557 has 2 divisors, whose sum is σ = 99619002558. Its totient is φ = 99619002556.

The previous prime is 99619002547. The next prime is 99619002577. The reversal of 99619002557 is 75520091699.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97397671396 + 2221331161 = 312086^2 + 47131^2 .

It is a cyclic number.

It is not a de Polignac number, because 99619002557 - 2²⁸ = 99350567101 is a prime.

It is a super-3 number, since 3×99619002557³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99619002499 and 99619002508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99619002547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49809501278 + 49809501279.

It is an arithmetic number, because the mean of its divisors is an integer number (49809501279).

Almost surely, 2^99619002557 is an apocalyptic number.

It is an amenable number.

99619002557 is a deficient number, since it is larger than the sum of its proper divisors (1).

99619002557 is an equidigital number, since it uses as much as digits as its factorization.

99619002557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1530900, while the sum is 53.

The spelling of 99619002557 in words is "ninety-nine billion, six hundred nineteen million, two thousand, five hundred fifty-seven".