1851035797969 has 16 divisors (see below), whose sum is σ = 1939614710400. Its totient is φ = 1763145432576.

The previous prime is 1851035797939. The next prime is 1851035797979. The reversal of 1851035797969 is 9697975301581.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1851035797969 is a prime.

It is a super-2 number, since 2×1851035797969² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1851035797898 and 1851035797907.

It is not an unprimeable number, because it can be changed into a prime (1851035797909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5845687 + ... + 6154195.

It is an arithmetic number, because the mean of its divisors is an integer number (121225919400).

Almost surely, 2^{1851035797969} is an apocalyptic number.

It is an amenable number.

1851035797969 is a deficient number, since it is larger than the sum of its proper divisors (88578912431).

1851035797969 is a wasteful number, since it uses less digits than its factorization.

1851035797969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309624.

The product of its (nonzero) digits is 128595600, while the sum is 70.

The spelling of 1851035797969 in words is "one trillion, eight hundred fifty-one billion, thirty-five million, seven hundred ninety-seven thousand, nine hundred sixty-nine".