38499505501 has 2 divisors, whose sum is σ = 38499505502. Its totient is φ = 38499505500.

The previous prime is 38499505493. The next prime is 38499505531. The reversal of 38499505501 is 10550599483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36213709401 + 2285796100 = 190299^2 + 47810^2 .

It is a cyclic number.

It is not a de Polignac number, because 38499505501 - 2³ = 38499505493 is a prime.

It is a super-2 number, since 2×38499505501² (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 (38499505531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19249752750 + 19249752751.

It is an arithmetic number, because the mean of its divisors is an integer number (19249752751).

Almost surely, 2^38499505501 is an apocalyptic number.

It is an amenable number.

38499505501 is a deficient number, since it is larger than the sum of its proper divisors (1).

38499505501 is an equidigital number, since it uses as much as digits as its factorization.

38499505501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972000, while the sum is 49.

The spelling of 38499505501 in words is "thirty-eight billion, four hundred ninety-nine million, five hundred five thousand, five hundred one".