1542611196361 has 9 divisors (see below), whose sum is σ = 1545771136743. Its totient is φ = 1539457710120.

The previous prime is 1542611196349. The next prime is 1542611196367. The reversal of 1542611196361 is 1636911162451.

The square root of 1542611196361 is 1242019.

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

It can be written as a sum of positive squares in only one way, i.e., 1224853506361 + 317757690000 = 1106731^2 + 563700^2 .

It is not a de Polignac number, because 1542611196361 - 2⁷ = 1542611196233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1542611196367) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 820973620 + ... + 820975498.

It is an arithmetic number, because the mean of its divisors is an integer number (171752348527).

Almost surely, 2^{1542611196361} is an apocalyptic number.

1542611196361 is the 1242019-th square number.

1542611196361 is the 621010-th centered octagonal number.

It is an amenable number.

1542611196361 is a deficient number, since it is larger than the sum of its proper divisors (3159940382).

1542611196361 is an frugal number, since it uses more digits than its factorization.

1542611196361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5080 (or 2540 counting only the distinct ones).

The product of its digits is 233280, while the sum is 46.

The spelling of 1542611196361 in words is "one trillion, five hundred forty-two billion, six hundred eleven million, one hundred ninety-six thousand, three hundred sixty-one".