747894452457 has 8 divisors (see below), whose sum is σ = 1055850991776. Its totient is φ = 469267107392.

The previous prime is 747894452447. The next prime is 747894452477. The reversal of 747894452457 is 754254498747.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 747894452457 - 2⁷ = 747894452329 is a prime.

It is a super-2 number, since 2×747894452457² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (747894452447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7332298503 + ... + 7332298604.

It is an arithmetic number, because the mean of its divisors is an integer number (131981373972).

Almost surely, 2^747894452457 is an apocalyptic number.

It is an amenable number.

747894452457 is a deficient number, since it is larger than the sum of its proper divisors (307956539319).

747894452457 is a wasteful number, since it uses less digits than its factorization.

747894452457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14664597127.

The product of its digits is 316108800, while the sum is 66.

The spelling of 747894452457 in words is "seven hundred forty-seven billion, eight hundred ninety-four million, four hundred fifty-two thousand, four hundred fifty-seven".