7770499927681 has 8 divisors (see below), whose sum is σ = 7795923411584. Its totient is φ = 7745077174320.

The previous prime is 7770499927679. The next prime is 7770499927709. The reversal of 7770499927681 is 1867299940777.

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 7770499927681 - 2¹ = 7770499927679 is a prime.

It is a super-2 number, since 2×7770499927681² (a number of 27 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 = 7770499927598 and 7770499927607.

It is not an unprimeable number, because it can be changed into a prime (7770499927621) 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, 28446691 + ... + 28718551.

It is an arithmetic number, because the mean of its divisors is an integer number (974490426448).

Almost surely, 2^{7770499927681} is an apocalyptic number.

It is an amenable number.

7770499927681 is a deficient number, since it is larger than the sum of its proper divisors (25423483903).

7770499927681 is a wasteful number, since it uses less digits than its factorization.

7770499927681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365271.

The product of its (nonzero) digits is 672126336, while the sum is 76.

The spelling of 7770499927681 in words is "seven trillion, seven hundred seventy billion, four hundred ninety-nine million, nine hundred twenty-seven thousand, six hundred eighty-one".