38532991953 has 4 divisors (see below), whose sum is σ = 51377322608. Its totient is φ = 25688661300.

The previous prime is 38532991951. The next prime is 38532991957. The reversal of 38532991953 is 35919923583.

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.

It is not a de Polignac number, because 38532991953 - 2¹ = 38532991951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38532991893 and 38532991902.

It is not an unprimeable number, because it can be changed into a prime (38532991951) 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, 6422165323 + ... + 6422165328.

It is an arithmetic number, because the mean of its divisors is an integer number (12844330652).

Almost surely, 2^38532991953 is an apocalyptic number.

It is an amenable number.

38532991953 is a deficient number, since it is larger than the sum of its proper divisors (12844330655).

38532991953 is a wasteful number, since it uses less digits than its factorization.

38532991953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12844330654.

The product of its digits is 7873200, while the sum is 57.

The spelling of 38532991953 in words is "thirty-eight billion, five hundred thirty-two million, nine hundred ninety-one thousand, nine hundred fifty-three".