77733201385456 has 40 divisors (see below), whose sum is σ = 159474438522864. Its totient is φ = 36578710072320.

The previous prime is 77733201385373. The next prime is 77733201385457. The reversal of 77733201385456 is 65458310233777.

It is a junction number, because it is equal to n+sod(n) for n = 77733201385394 and 77733201385403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77733201385457) 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, 163870 + ... + 12469693.

Almost surely, 2^{77733201385456} is an apocalyptic number.

It is an amenable number.

77733201385456 is an abundant number, since it is smaller than the sum of its proper divisors (81741237137408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77733201385456 is a wasteful number, since it uses less digits than its factorization.

77733201385456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12656209 (or 12656203 counting only the distinct ones).

The product of its (nonzero) digits is 88905600, while the sum is 61.

The spelling of 77733201385456 in words is "seventy-seven trillion, seven hundred thirty-three billion, two hundred one million, three hundred eighty-five thousand, four hundred fifty-six".