766735894261 has 4 divisors (see below), whose sum is σ = 767418652192. Its totient is φ = 766053136332.

The previous prime is 766735894241. The next prime is 766735894289. The reversal of 766735894261 is 162498537667.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-766735894261 is a prime.

It is a super-2 number, since 2×766735894261² (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 = 766735894193 and 766735894202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766735894241) 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, 341377281 + ... + 341379526.

It is an arithmetic number, because the mean of its divisors is an integer number (191854663048).

Almost surely, 2^766735894261 is an apocalyptic number.

It is an amenable number.

766735894261 is a deficient number, since it is larger than the sum of its proper divisors (682757931).

766735894261 is a wasteful number, since it uses less digits than its factorization.

766735894261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682757930.

The product of its digits is 91445760, while the sum is 64.

The spelling of 766735894261 in words is "seven hundred sixty-six billion, seven hundred thirty-five million, eight hundred ninety-four thousand, two hundred sixty-one".