77406663803 has 8 divisors (see below), whose sum is σ = 93120798720. Its totient is φ = 62856538920.

The previous prime is 77406663793. The next prime is 77406663857. The reversal of 77406663803 is 30836660477.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77406663803 - 2¹⁴ = 77406647419 is a prime.

It is a super-2 number, since 2×77406663803² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77406623803) 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, 291002363 + ... + 291002628.

It is an arithmetic number, because the mean of its divisors is an integer number (11640099840).

Almost surely, 2^77406663803 is an apocalyptic number.

77406663803 is a deficient number, since it is larger than the sum of its proper divisors (15714134917).

77406663803 is a wasteful number, since it uses less digits than its factorization.

77406663803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582005017.

The product of its (nonzero) digits is 3048192, while the sum is 50.

The spelling of 77406663803 in words is "seventy-seven billion, four hundred six million, six hundred sixty-three thousand, eight hundred three".