1542826656945 has 384 divisors, whose sum is σ = 3375654912000. Its totient is φ = 665633687040.

The previous prime is 1542826656937. The next prime is 1542826656997. The reversal of 1542826656945 is 5496566282451.

1542826656945 is a `hidden beast` number, since 1 + 5 + 4 + 2 + 8 + 2 + 66 + 569 + 4 + 5 = 666.

It is not a de Polignac number, because 1542826656945 - 2³ = 1542826656937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 3067249564 + ... + 3067250066.

It is an arithmetic number, because the mean of its divisors is an integer number (8790768000).

Almost surely, 2^{1542826656945} is an apocalyptic number.

1542826656945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1542826656945 is an abundant number, since it is smaller than the sum of its proper divisors (1832828255055).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1542826656945 is a wasteful number, since it uses less digits than its factorization.

1542826656945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 877 counting only the distinct ones).

The product of its digits is 124416000, while the sum is 63.

The spelling of 1542826656945 in words is "one trillion, five hundred forty-two billion, eight hundred twenty-six million, six hundred fifty-six thousand, nine hundred forty-five".