693423572028 has 48 divisors (see below), whose sum is σ = 1868906317824. Its totient is φ = 197767863040.

The previous prime is 693423572027. The next prime is 693423572029. The reversal of 693423572028 is 820275324396.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (693423572027) and next prime (693423572029).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (693423572027) 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, 154503900 + ... + 154508387.

It is an arithmetic number, because the mean of its divisors is an integer number (38935548288).

Almost surely, 2^693423572028 is an apocalyptic number.

693423572028 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

693423572028 is an abundant number, since it is smaller than the sum of its proper divisors (1175482745796).

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

693423572028 is a wasteful number, since it uses less digits than its factorization.

693423572028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309012322 (or 309012320 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 693423572028 in words is "six hundred ninety-three billion, four hundred twenty-three million, five hundred seventy-two thousand, twenty-eight".