1545461342557 has 8 divisors (see below), whose sum is σ = 1744094305440. Its totient is φ = 1356517792560.

The previous prime is 1545461342533. The next prime is 1545461342561. The reversal of 1545461342557 is 7552431645451.

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 1545461342557 - 2⁷ = 1545461342429 is a prime.

It is a super-2 number, since 2×1545461342557² (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 (1545461042557) 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, 2422352883 + ... + 2422353520.

It is an arithmetic number, because the mean of its divisors is an integer number (218011788180).

Almost surely, 2^{1545461342557} is an apocalyptic number.

It is an amenable number.

1545461342557 is a deficient number, since it is larger than the sum of its proper divisors (198632962883).

1545461342557 is a wasteful number, since it uses less digits than its factorization.

1545461342557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4844706443.

The product of its digits is 10080000, while the sum is 52.

The spelling of 1545461342557 in words is "one trillion, five hundred forty-five billion, four hundred sixty-one million, three hundred forty-two thousand, five hundred fifty-seven".