321696148738 has 8 divisors (see below), whose sum is σ = 483410551932. Its totient is φ = 160559298096.

The previous prime is 321696148729. The next prime is 321696148757. The reversal of 321696148738 is 837841696123.

It can be written as a sum of positive squares in 2 ways, for example, as 320431848489 + 1264300249 = 566067^2 + 35557^2 .

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

It is a super-2 number, since 2×321696148738² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144386745 + ... + 144388972.

Almost surely, 2^321696148738 is an apocalyptic number.

321696148738 is a deficient number, since it is larger than the sum of its proper divisors (161714403194).

321696148738 is a wasteful number, since it uses less digits than its factorization.

321696148738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288776276.

The product of its digits is 10450944, while the sum is 58.

The spelling of 321696148738 in words is "three hundred twenty-one billion, six hundred ninety-six million, one hundred forty-eight thousand, seven hundred thirty-eight".