747043155072 has 48 divisors (see below), whose sum is σ = 2149694499030. Its totient is φ = 249014384640.

The previous prime is 747043155031. The next prime is 747043155073. The reversal of 747043155072 is 270551340747.

747043155072 is a `hidden beast` number, since 74 + 70 + 4 + 3 + 1 + 5 + 507 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 434365356096 + 312677798976 = 659064^2 + 559176^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (747043155073) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 324236329 + ... + 324238632.

Almost surely, 2^747043155072 is an apocalyptic number.

747043155072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

747043155072 is an abundant number, since it is smaller than the sum of its proper divisors (1402651343958).

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

747043155072 is a wasteful number, since it uses less digits than its factorization.

747043155072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648474981 (or 648474966 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 45.

The spelling of 747043155072 in words is "seven hundred forty-seven billion, forty-three million, one hundred fifty-five thousand, seventy-two".