9038837649 has 4 divisors (see below), whose sum is σ = 12051783536. Its totient is φ = 6025891764.

The previous prime is 9038837609. The next prime is 9038837659. The reversal of 9038837649 is 9467388309.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9467388309 = 3 ⋅3155796103.

It is not a de Polignac number, because 9038837649 - 2¹² = 9038833553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9038837609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1506472939 + ... + 1506472944.

It is an arithmetic number, because the mean of its divisors is an integer number (3012945884).

Almost surely, 2^9038837649 is an apocalyptic number.

It is an amenable number.

9038837649 is a deficient number, since it is larger than the sum of its proper divisors (3012945887).

9038837649 is a wasteful number, since it uses less digits than its factorization.

9038837649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012945886.

The product of its (nonzero) digits is 7838208, while the sum is 57.

The square root of 9038837649 is about 95072.8018362770. The cubic root of 9038837649 is about 2083.0715874482.

The spelling of 9038837649 in words is "nine billion, thirty-eight million, eight hundred thirty-seven thousand, six hundred forty-nine".