83750013378 has 36 divisors (see below), whose sum is σ = 183237615990. Its totient is φ = 27645572448.

The previous prime is 83750013377. The next prime is 83750013383. The reversal of 83750013378 is 87331005738.

83750013378 is a `hidden beast` number, since 8 + 3 + 7 + 500 + 133 + 7 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 64672050249 + 19077963129 = 254307^2 + 138123^2 .

It is not an unprimeable number, because it can be changed into a prime (83750013377) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28323 + ... + 410246.

Almost surely, 2^83750013378 is an apocalyptic number.

83750013378 is an abundant number, since it is smaller than the sum of its proper divisors (99487602612).

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

83750013378 is a wasteful number, since it uses less digits than its factorization.

83750013378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438783 (or 438677 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 83750013378 in words is "eighty-three billion, seven hundred fifty million, thirteen thousand, three hundred seventy-eight".