772546446040 has 64 divisors (see below), whose sum is σ = 1767904704000. Its totient is φ = 303744255360.

The previous prime is 772546446019. The next prime is 772546446053. The reversal of 772546446040 is 40644645277.

It is a happy number.

It is a super-2 number, since 2×772546446040² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27784545 + ... + 27812335.

It is an arithmetic number, because the mean of its divisors is an integer number (27623511000).

Almost surely, 2^772546446040 is an apocalyptic number.

It is an amenable number.

772546446040 is an abundant number, since it is smaller than the sum of its proper divisors (995358257960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

772546446040 is a wasteful number, since it uses less digits than its factorization.

772546446040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39640 (or 39636 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 49.

The spelling of 772546446040 in words is "seven hundred seventy-two billion, five hundred forty-six million, four hundred forty-six thousand, forty".