523451020977 has 16 divisors (see below), whose sum is σ = 788626776000. Its totient is φ = 343052645472.

The previous prime is 523451020973. The next prime is 523451020979. The reversal of 523451020977 is 779020154325.

It is a happy number.

523451020977 is a `hidden beast` number, since 5 + 23 + 4 + 510 + 20 + 97 + 7 = 666.

523451020977 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 523451020977 - 2² = 523451020973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (523451020973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164295652 + ... + 164298837.

It is an arithmetic number, because the mean of its divisors is an integer number (49289173500).

Almost surely, 2^523451020977 is an apocalyptic number.

It is an amenable number.

523451020977 is a deficient number, since it is larger than the sum of its proper divisors (265175755023).

523451020977 is a wasteful number, since it uses less digits than its factorization.

523451020977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328594557 (or 328594551 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 523451020977 in words is "five hundred twenty-three billion, four hundred fifty-one million, twenty thousand, nine hundred seventy-seven".