1397276847832 has 32 divisors (see below), whose sum is σ = 2769932145600. Its totient is φ = 658952246304.

The previous prime is 1397276847809. The next prime is 1397276847833. The reversal of 1397276847832 is 2387486727931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397276847833) 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, 20213538 + ... + 20282545.

It is an arithmetic number, because the mean of its divisors is an integer number (86560379550).

Almost surely, 2^{1397276847832} is an apocalyptic number.

It is an amenable number.

1397276847832 is a deficient number, since it is larger than the sum of its proper divisors (1372655297768).

1397276847832 is a wasteful number, since it uses less digits than its factorization.

1397276847832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40496335 (or 40496331 counting only the distinct ones).

The product of its digits is 170698752, while the sum is 67.

The spelling of 1397276847832 in words is "one trillion, three hundred ninety-seven billion, two hundred seventy-six million, eight hundred forty-seven thousand, eight hundred thirty-two".