1973402678751 has 8 divisors (see below), whose sum is σ = 3007089796224. Its totient is φ = 1127658673560.

The previous prime is 1973402678729. The next prime is 1973402678759. The reversal of 1973402678751 is 1578762043791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1973402678751 - 2⁷ = 1973402678623 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973402678759) 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, 46985778045 + ... + 46985778086.

It is an arithmetic number, because the mean of its divisors is an integer number (375886224528).

It is a 1-persistent number, because it is pandigital, but 2⋅1973402678751 = 3946805357502 is not.

Almost surely, 2^{1973402678751} is an apocalyptic number.

1973402678751 is a deficient number, since it is larger than the sum of its proper divisors (1033687117473).

1973402678751 is an equidigital number, since it uses as much as digits as its factorization.

1973402678751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93971556141.

The product of its (nonzero) digits is 17781120, while the sum is 60.

The spelling of 1973402678751 in words is "one trillion, nine hundred seventy-three billion, four hundred two million, six hundred seventy-eight thousand, seven hundred fifty-one".