807693457442 has 8 divisors (see below), whose sum is σ = 1217817597036. Its totient is φ = 401754258432.

The previous prime is 807693457427. The next prime is 807693457447. The reversal of 807693457442 is 244754396708.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 784586721361 + 23106736081 = 885769^2 + 152009^2 .

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

It is a super-2 number, since 2×807693457442² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (807693457447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046234663 + ... + 1046235434.

Almost surely, 2^807693457442 is an apocalyptic number.

807693457442 is a deficient number, since it is larger than the sum of its proper divisors (410124139594).

807693457442 is a wasteful number, since it uses less digits than its factorization.

807693457442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092470292.

The product of its (nonzero) digits is 40642560, while the sum is 59.

The spelling of 807693457442 in words is "eight hundred seven billion, six hundred ninety-three million, four hundred fifty-seven thousand, four hundred forty-two".