1528072269625 has 32 divisors (see below), whose sum is σ = 2091293448192. Its totient is φ = 1105506640000.

The previous prime is 1528072269593. The next prime is 1528072269739. The reversal of 1528072269625 is 5269622708251.

It is not a de Polignac number, because 1528072269625 - 2⁵ = 1528072269593 is a prime.

It is a super-2 number, since 2×1528072269625² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2646604 + ... + 3171853.

It is an arithmetic number, because the mean of its divisors is an integer number (65352920256).

Almost surely, 2^{1528072269625} is an apocalyptic number.

It is an amenable number.

1528072269625 is a deficient number, since it is larger than the sum of its proper divisors (563221178567).

1528072269625 is a wasteful number, since it uses less digits than its factorization.

1528072269625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5818674 (or 5818664 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 1528072269625 in words is "one trillion, five hundred twenty-eight billion, seventy-two million, two hundred sixty-nine thousand, six hundred twenty-five".