647355337058 has 4 divisors (see below), whose sum is σ = 971033005590. Its totient is φ = 323677668528.

The previous prime is 647355337049. The next prime is 647355337073. The reversal of 647355337058 is 850733553746.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 850733553746 = 2 ⋅425366776873.

It can be written as a sum of positive squares in only one way, i.e., 644306419969 + 3048917089 = 802687^2 + 55217^2 .

It is a junction number, because it is equal to n+sod(n) for n = 647355336994 and 647355337012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161838834263 + ... + 161838834266.

Almost surely, 2^647355337058 is an apocalyptic number.

647355337058 is a deficient number, since it is larger than the sum of its proper divisors (323677668532).

647355337058 is a wasteful number, since it uses less digits than its factorization.

647355337058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323677668531.

The product of its (nonzero) digits is 31752000, while the sum is 56.

The spelling of 647355337058 in words is "six hundred forty-seven billion, three hundred fifty-five million, three hundred thirty-seven thousand, fifty-eight".