190137778814 has 4 divisors (see below), whose sum is σ = 285206668224. Its totient is φ = 95068889406.

The previous prime is 190137778769. The next prime is 190137778837. The reversal of 190137778814 is 418877731091.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 190137778814.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47534444702 + ... + 47534444705.

It is an arithmetic number, because the mean of its divisors is an integer number (71301667056).

Almost surely, 2^190137778814 is an apocalyptic number.

190137778814 is a deficient number, since it is larger than the sum of its proper divisors (95068889410).

190137778814 is an equidigital number, since it uses as much as digits as its factorization.

190137778814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95068889409.

The product of its (nonzero) digits is 2370816, while the sum is 56.

The spelling of 190137778814 in words is "one hundred ninety billion, one hundred thirty-seven million, seven hundred seventy-eight thousand, eight hundred fourteen".