83419491438 has 32 divisors (see below), whose sum is σ = 185474085120. Its totient is φ = 27791881560.

The previous prime is 83419491437. The next prime is 83419491497.

83419491438 is a `hidden beast` number, since 8 + 34 + 1 + 94 + 91 + 438 = 666.

83419491438 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83419491433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302058 + ... + 508013.

It is an arithmetic number, because the mean of its divisors is an integer number (5796065160).

Almost surely, 2^83419491438 is an apocalyptic number.

83419491438 is an abundant number, since it is smaller than the sum of its proper divisors (102054593682).

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

83419491438 is a wasteful number, since it uses less digits than its factorization.

83419491438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811989 (or 811983 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 83419491438 in words is "eighty-three billion, four hundred nineteen million, four hundred ninety-one thousand, four hundred thirty-eight".