190479585434 has 4 divisors (see below), whose sum is σ = 285719378154. Its totient is φ = 95239792716.

The previous prime is 190479585433. The next prime is 190479585463. The reversal of 190479585434 is 434585974091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434585974091 = 61 ⋅7124360231.

It can be written as a sum of positive squares in only one way, i.e., 103101999025 + 87377586409 = 321095^2 + 295597^2 .

It is not an unprimeable number, because it can be changed into a prime (190479585433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47619896357 + ... + 47619896360.

Almost surely, 2^190479585434 is an apocalyptic number.

190479585434 is a deficient number, since it is larger than the sum of its proper divisors (95239792720).

190479585434 is an equidigital number, since it uses as much as digits as its factorization.

190479585434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95239792719.

The product of its (nonzero) digits is 21772800, while the sum is 59.

The spelling of 190479585434 in words is "one hundred ninety billion, four hundred seventy-nine million, five hundred eighty-five thousand, four hundred thirty-four".