1072521728390 has 32 divisors (see below), whose sum is σ = 2234258657280. Its totient is φ = 363067028064.

The previous prime is 1072521728363. The next prime is 1072521728419. The reversal of 1072521728390 is 938271252701.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96967502 + ... + 96978561.

It is an arithmetic number, because the mean of its divisors is an integer number (69820583040).

Almost surely, 2^{1072521728390} is an apocalyptic number.

1072521728390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1072521728390 is an abundant number, since it is smaller than the sum of its proper divisors (1161736928890).

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

1072521728390 is a wasteful number, since it uses less digits than its factorization.

1072521728390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193946156.

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 1072521728390 in words is "one trillion, seventy-two billion, five hundred twenty-one million, seven hundred twenty-eight thousand, three hundred ninety".