147477939697 has 4 divisors (see below), whose sum is σ = 160885025136. Its totient is φ = 134070854260.

The previous prime is 147477939577. The next prime is 147477939709. The reversal of 147477939697 is 796939774741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 796939774741 = 11 ⋅72449070431.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147477939697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147477939197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6703542703 + ... + 6703542724.

It is an arithmetic number, because the mean of its divisors is an integer number (40221256284).

Almost surely, 2^147477939697 is an apocalyptic number.

It is an amenable number.

147477939697 is a deficient number, since it is larger than the sum of its proper divisors (13407085439).

147477939697 is a wasteful number, since it uses less digits than its factorization.

147477939697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13407085438.

The product of its digits is 504094752, while the sum is 73.

The spelling of 147477939697 in words is "one hundred forty-seven billion, four hundred seventy-seven million, nine hundred thirty-nine thousand, six hundred ninety-seven".