83719250370 has 72 divisors (see below), whose sum is σ = 253208031804. Its totient is φ = 19135827648.

The previous prime is 83719250267. The next prime is 83719250371. The reversal of 83719250370 is 7305291738.

It is a happy number.

83719250370 is a `hidden beast` number, since 8 + 3 + 71 + 9 + 2 + 503 + 70 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 80288922609 + 3430327761 = 283353^2 + 58569^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (83719250371) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9487569 + ... + 9496388.

Almost surely, 2^83719250370 is an apocalyptic number.

83719250370 is an abundant number, since it is smaller than the sum of its proper divisors (169488781434).

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

83719250370 is a wasteful number, since it uses less digits than its factorization.

83719250370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18983984 (or 18983974 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 83719250370 in words is "eighty-three billion, seven hundred nineteen million, two hundred fifty thousand, three hundred seventy".