1542177969940 has 24 divisors (see below), whose sum is σ = 3293464819680. Its totient is φ = 606415743648.

The previous prime is 1542177969929. The next prime is 1542177969967. The reversal of 1542177969940 is 499697712451.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653464062 + ... + 653466421.

It is an arithmetic number, because the mean of its divisors is an integer number (137227700820).

Almost surely, 2^{1542177969940} is an apocalyptic number.

1542177969940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1542177969940 is an abundant number, since it is smaller than the sum of its proper divisors (1751286849740).

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

1542177969940 is a wasteful number, since it uses less digits than its factorization.

1542177969940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306930551 (or 1306930549 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 64.

The spelling of 1542177969940 in words is "one trillion, five hundred forty-two billion, one hundred seventy-seven million, nine hundred sixty-nine thousand, nine hundred forty".