75533786338 has 32 divisors (see below), whose sum is σ = 117598566960. Its totient is φ = 36343184640.

The previous prime is 75533786297. The next prime is 75533786399. The reversal of 75533786338 is 83368733557.

It can be written as a sum of positive squares in 8 ways, for example, as 2388961129 + 73144825209 = 48877^2 + 270453^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27555648 + ... + 27558388.

Almost surely, 2^75533786338 is an apocalyptic number.

75533786338 is a deficient number, since it is larger than the sum of its proper divisors (42064780622).

75533786338 is a wasteful number, since it uses less digits than its factorization.

75533786338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182.

The product of its digits is 38102400, while the sum is 58.

The spelling of 75533786338 in words is "seventy-five billion, five hundred thirty-three million, seven hundred eighty-six thousand, three hundred thirty-eight".