99387261503 has 2 divisors, whose sum is σ = 99387261504. Its totient is φ = 99387261502.

The previous prime is 99387261499. The next prime is 99387261553. The reversal of 99387261503 is 30516278399.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99387261503 - 2² = 99387261499 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99387261553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49693630751 + 49693630752.

It is an arithmetic number, because the mean of its divisors is an integer number (49693630752).

Almost surely, 2^99387261503 is an apocalyptic number.

99387261503 is a deficient number, since it is larger than the sum of its proper divisors (1).

99387261503 is an equidigital number, since it uses as much as digits as its factorization.

99387261503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 99387261503 in words is "ninety-nine billion, three hundred eighty-seven million, two hundred sixty-one thousand, five hundred three".