42819191280 has 120 divisors (see below), whose sum is σ = 147687725952. Its totient is φ = 11109837312.

The previous prime is 42819191263. The next prime is 42819191323. The reversal of 42819191280 is 8219191824.

42819191280 is a `hidden beast` number, since 4 + 281 + 9 + 1 + 91 + 280 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 777024 + ... + 830303.

Almost surely, 2^42819191280 is an apocalyptic number.

42819191280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42819191280 is an abundant number, since it is smaller than the sum of its proper divisors (104868534672).

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

42819191280 is a wasteful number, since it uses less digits than its factorization.

42819191280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607383 (or 1607374 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 42819191280 in words is "forty-two billion, eight hundred nineteen million, one hundred ninety-one thousand, two hundred eighty".