1972554552791 has 8 divisors (see below), whose sum is σ = 1979810864640. Its totient is φ = 1965307274488.

The previous prime is 1972554552779. The next prime is 1972554552809.

It is a happy number.

1972554552791 is nontrivially palindromic in base 10.

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 1972554552791 - 2¹⁸ = 1972554290647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972554551791) 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, 1820711 + ... + 2694456.

It is an arithmetic number, because the mean of its divisors is an integer number (247476358080).

Almost surely, 2^{1972554552791} is an apocalyptic number.

1972554552791 is a deficient number, since it is larger than the sum of its proper divisors (7256311849).

1972554552791 is a wasteful number, since it uses less digits than its factorization.

1972554552791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4516773.

The product of its digits is 39690000, while the sum is 62.

The spelling of 1972554552791 in words is "one trillion, nine hundred seventy-two billion, five hundred fifty-four million, five hundred fifty-two thousand, seven hundred ninety-one".