1972071146497 has 8 divisors (see below), whose sum is σ = 1983881039040. Its totient is φ = 1960270062480.

The previous prime is 1972071146489. The next prime is 1972071146509. The reversal of 1972071146497 is 7946411702791.

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 1972071146497 - 2³ = 1972071146489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1972071146477) 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, 1752754 + ... + 2648827.

It is an arithmetic number, because the mean of its divisors is an integer number (247985129880).

Almost surely, 2^{1972071146497} is an apocalyptic number.

It is an amenable number.

1972071146497 is a deficient number, since it is larger than the sum of its proper divisors (11809892543).

1972071146497 is a wasteful number, since it uses less digits than its factorization.

1972071146497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404263.

The product of its (nonzero) digits is 5334336, while the sum is 58.

The spelling of 1972071146497 in words is "one trillion, nine hundred seventy-two billion, seventy-one million, one hundred forty-six thousand, four hundred ninety-seven".