1077776699949 has 24 divisors (see below), whose sum is σ = 1669644156960. Its totient is φ = 667857651552.

The previous prime is 1077776699947. The next prime is 1077776699971. The reversal of 1077776699949 is 9499966777701.

It is not a de Polignac number, because 1077776699949 - 2¹ = 1077776699947 is a prime.

It is a super-2 number, since 2×1077776699949² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1077776699947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59451199 + ... + 59469324.

It is an arithmetic number, because the mean of its divisors is an integer number (69568506540).

Almost surely, 2^{1077776699949} is an apocalyptic number.

1077776699949 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1077776699949 is a deficient number, since it is larger than the sum of its proper divisors (591867457011).

1077776699949 is a wasteful number, since it uses less digits than its factorization.

1077776699949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118920601 (or 118920598 counting only the distinct ones).

The product of its (nonzero) digits is 2268426384, while the sum is 81.

The spelling of 1077776699949 in words is "one trillion, seventy-seven billion, seven hundred seventy-six million, six hundred ninety-nine thousand, nine hundred forty-nine".