1542179004025 has 81 divisors (see below), whose sum is σ = 2140142922477. Its totient is φ = 1101566188800.

The previous prime is 1542179003969. The next prime is 1542179004061. The reversal of 1542179004025 is 5204009712451.

The square root of 1542179004025 is 1241845.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 213535485801 + 1328643518224 = 462099^2 + 1152668^2 .

It is not a de Polignac number, because 1542179004025 - 2¹⁷ = 1542178872953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 4576198657 + ... + 4576198993.

Almost surely, 2^{1542179004025} is an apocalyptic number.

1542179004025 is the 1241845-th square number.

1542179004025 is the 620923-rd centered octagonal number.

It is an amenable number.

1542179004025 is a deficient number, since it is larger than the sum of its proper divisors (597963918452).

1542179004025 is an frugal number, since it uses more digits than its factorization.

1542179004025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 1542179004025 in words is "one trillion, five hundred forty-two billion, one hundred seventy-nine million, four thousand, twenty-five".