65238483375 has 288 divisors, whose sum is σ = 136693851840. Its totient is φ = 30862944000.

The previous prime is 65238483371. The next prime is 65238483397. The reversal of 65238483375 is 57338483256.

It is a happy number.

65238483375 is a `hidden beast` number, since 6 + 523 + 8 + 4 + 83 + 37 + 5 = 666.

It is not a de Polignac number, because 65238483375 - 2² = 65238483371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65238483371) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 309187020 + ... + 309187230.

It is an arithmetic number, because the mean of its divisors is an integer number (474631430).

Almost surely, 2^65238483375 is an apocalyptic number.

65238483375 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

65238483375 is an abundant number, since it is smaller than the sum of its proper divisors (71455368465).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65238483375 is an equidigital number, since it uses as much as digits as its factorization.

65238483375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 261 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 54.

The spelling of 65238483375 in words is "sixty-five billion, two hundred thirty-eight million, four hundred eighty-three thousand, three hundred seventy-five".