1219397724364 has 6 divisors (see below), whose sum is σ = 2133946017644. Its totient is φ = 609698862180.

The previous prime is 1219397724313. The next prime is 1219397724371. The reversal of 1219397724364 is 4634277939121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1219397724299 and 1219397724308.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152424715542 + ... + 152424715549.

Almost surely, 2^{1219397724364} is an apocalyptic number.

It is an amenable number.

1219397724364 is a deficient number, since it is larger than the sum of its proper divisors (914548293280).

1219397724364 is a wasteful number, since it uses less digits than its factorization.

1219397724364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304849431095 (or 304849431093 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 58.

The spelling of 1219397724364 in words is "one trillion, two hundred nineteen billion, three hundred ninety-seven million, seven hundred twenty-four thousand, three hundred sixty-four".