190045219777 has 24 divisors (see below), whose sum is σ = 221587928640. Its totient is φ = 162516967200.

The previous prime is 190045219723. The next prime is 190045219781. The reversal of 190045219777 is 777912540091.

It is a happy number.

It is not a de Polignac number, because 190045219777 - 2²³ = 190036831169 is a prime.

It is a super-2 number, since 2×190045219777² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190045219717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57258124 + ... + 57261442.

It is an arithmetic number, because the mean of its divisors is an integer number (9232830360).

Almost surely, 2^190045219777 is an apocalyptic number.

It is an amenable number.

190045219777 is a deficient number, since it is larger than the sum of its proper divisors (31542708863).

190045219777 is a wasteful number, since it uses less digits than its factorization.

190045219777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5701 (or 5694 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 52.

The spelling of 190045219777 in words is "one hundred ninety billion, forty-five million, two hundred nineteen thousand, seven hundred seventy-seven".