70528499712 has 256 divisors, whose sum is σ = 227998886400. Its totient is φ = 21369323520.

The previous prime is 70528499711. The next prime is 70528499747. The reversal of 70528499712 is 21799482507.

70528499712 is a `hidden beast` number, since 7 + 0 + 528 + 49 + 9 + 71 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (256).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70528499711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9728473 + ... + 9735719.

It is an arithmetic number, because the mean of its divisors is an integer number (890620650).

Almost surely, 2^70528499712 is an apocalyptic number.

70528499712 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70528499712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113999443200).

70528499712 is an abundant number, since it is smaller than the sum of its proper divisors (157470386688).

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

70528499712 is an equidigital number, since it uses as much as digits as its factorization.

70528499712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7297 (or 7263 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 70528499712 in words is "seventy billion, five hundred twenty-eight million, four hundred ninety-nine thousand, seven hundred twelve".