38400005953 has 2 divisors, whose sum is σ = 38400005954. Its totient is φ = 38400005952.

The previous prime is 38400005929. The next prime is 38400005957. The reversal of 38400005953 is 35950000483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38330983089 + 69022864 = 195783^2 + 8308^2 .

It is a cyclic number.

It is not a de Polignac number, because 38400005953 - 2²⁵ = 38366451521 is a prime.

It is not a weakly prime, because it can be changed into another prime (38400005957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19200002976 + 19200002977.

It is an arithmetic number, because the mean of its divisors is an integer number (19200002977).

Almost surely, 2^38400005953 is an apocalyptic number.

It is an amenable number.

38400005953 is a deficient number, since it is larger than the sum of its proper divisors (1).

38400005953 is an equidigital number, since it uses as much as digits as its factorization.

38400005953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 38400005953 in words is "thirty-eight billion, four hundred million, five thousand, nine hundred fifty-three".