747766615464 has 384 divisors, whose sum is σ = 2409979152000. Its totient is φ = 214072657920.

The previous prime is 747766615457. The next prime is 747766615487. The reversal of 747766615464 is 464516667747.

It is a happy number.

It is a super-2 number, since 2×747766615464² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 197141952 + ... + 197145744.

It is an arithmetic number, because the mean of its divisors is an integer number (6275987375).

Almost surely, 2^747766615464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 747766615464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1204989576000).

747766615464 is an abundant number, since it is smaller than the sum of its proper divisors (1662212536536).

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

747766615464 is a wasteful number, since it uses less digits than its factorization.

747766615464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4246 (or 4225 counting only the distinct ones).

The product of its digits is 142248960, while the sum is 63.

The spelling of 747766615464 in words is "seven hundred forty-seven billion, seven hundred sixty-six million, six hundred fifteen thousand, four hundred sixty-four".