1974702019747 has 4 divisors (see below), whose sum is σ = 1987279739776. Its totient is φ = 1962124299720.

The previous prime is 1974702019723. The next prime is 1974702019753. The reversal of 1974702019747 is 7479102074791.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1974702019747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1974702019691 and 1974702019700.

It is not an unprimeable number, because it can be changed into a prime (1974702019447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6288859779 + ... + 6288860092.

It is an arithmetic number, because the mean of its divisors is an integer number (496819934944).

Almost surely, 2^{1974702019747} is an apocalyptic number.

1974702019747 is a deficient number, since it is larger than the sum of its proper divisors (12577720029).

1974702019747 is a wasteful number, since it uses less digits than its factorization.

1974702019747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12577720028.

The product of its (nonzero) digits is 6223392, while the sum is 58.

The spelling of 1974702019747 in words is "one trillion, nine hundred seventy-four billion, seven hundred two million, nineteen thousand, seven hundred forty-seven".