1542640850677 has 8 divisors (see below), whose sum is σ = 1543270228416. Its totient is φ = 1542011588832.

The previous prime is 1542640850671. The next prime is 1542640850683. The reversal of 1542640850677 is 7760580462451.

It is an interprime number because it is at equal distance from previous prime (1542640850671) and next prime (1542640850683).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1542640850677 - 2⁷ = 1542640850549 is a prime.

It is a super-2 number, since 2×1542640850677² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542640850671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34552873 + ... + 34597489.

It is an arithmetic number, because the mean of its divisors is an integer number (192908778552).

Almost surely, 2^{1542640850677} is an apocalyptic number.

It is an amenable number.

1542640850677 is a deficient number, since it is larger than the sum of its proper divisors (629377739).

1542640850677 is an equidigital number, since it uses as much as digits as its factorization.

1542640850677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57947.

The product of its (nonzero) digits is 11289600, while the sum is 55.

The spelling of 1542640850677 in words is "one trillion, five hundred forty-two billion, six hundred forty million, eight hundred fifty thousand, six hundred seventy-seven".