1572378952090 has 16 divisors (see below), whose sum is σ = 2830451599080. Its totient is φ = 628913917440.

The previous prime is 1572378952063. The next prime is 1572378952099. The reversal of 1572378952090 is 902598732751.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1571239687081 + 1139265009 = 1253491^2 + 33753^2 .

It is not an unprimeable number, because it can be changed into a prime (1572378952099) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4532271 + ... + 4866850.

Almost surely, 2^{1572378952090} is an apocalyptic number.

1572378952090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1572378952090 is a deficient number, since it is larger than the sum of its proper divisors (1258072646990).

1572378952090 is a wasteful number, since it uses less digits than its factorization.

1572378952090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9415857.

The product of its (nonzero) digits is 9525600, while the sum is 58.

The spelling of 1572378952090 in words is "one trillion, five hundred seventy-two billion, three hundred seventy-eight million, nine hundred fifty-two thousand, ninety".