147690081794 has 4 divisors (see below), whose sum is σ = 221535122694. Its totient is φ = 73845040896.

The previous prime is 147690081779. The next prime is 147690081809. The reversal of 147690081794 is 497180096741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 497180096741 = 117671 ⋅4225171.

It is an interprime number because it is at equal distance from previous prime (147690081779) and next prime (147690081809).

It can be written as a sum of positive squares in only one way, i.e., 124930437025 + 22759644769 = 353455^2 + 150863^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36922520447 + ... + 36922520450.

Almost surely, 2^147690081794 is an apocalyptic number.

147690081794 is a deficient number, since it is larger than the sum of its proper divisors (73845040900).

147690081794 is an equidigital number, since it uses as much as digits as its factorization.

147690081794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73845040899.

The product of its (nonzero) digits is 3048192, while the sum is 56.

The spelling of 147690081794 in words is "one hundred forty-seven billion, six hundred ninety million, eighty-one thousand, seven hundred ninety-four".