772448405147 has 4 divisors (see below), whose sum is σ = 772476907536. Its totient is φ = 772419902760.

The previous prime is 772448405093. The next prime is 772448405167. The reversal of 772448405147 is 741504844277.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 772448405147 - 2²² = 772444210843 is a prime.

It is a super-2 number, since 2×772448405147² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (772448405167) 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, 14210504 + ... + 14264757.

It is an arithmetic number, because the mean of its divisors is an integer number (193119226884).

Almost surely, 2^772448405147 is an apocalyptic number.

772448405147 is a deficient number, since it is larger than the sum of its proper divisors (28502389).

772448405147 is a wasteful number, since it uses less digits than its factorization.

772448405147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28502388.

The product of its (nonzero) digits is 7024640, while the sum is 53.

The spelling of 772448405147 in words is "seven hundred seventy-two billion, four hundred forty-eight million, four hundred five thousand, one hundred forty-seven".