747678364161 has 16 divisors (see below), whose sum is σ = 998093638080. Its totient is φ = 497857967360.

The previous prime is 747678364129. The next prime is 747678364163. The reversal of 747678364161 is 161463876747.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 747678364161 - 2⁵ = 747678364129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 747678364095 and 747678364104.

It is not an unprimeable number, because it can be changed into a prime (747678364163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10483141 + ... + 10554221.

It is an arithmetic number, because the mean of its divisors is an integer number (62380852380).

Almost surely, 2^747678364161 is an apocalyptic number.

It is an amenable number.

747678364161 is a deficient number, since it is larger than the sum of its proper divisors (250415273919).

747678364161 is a wasteful number, since it uses less digits than its factorization.

747678364161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75216.

The product of its digits is 28449792, while the sum is 60.

The spelling of 747678364161 in words is "seven hundred forty-seven billion, six hundred seventy-eight million, three hundred sixty-four thousand, one hundred sixty-one".