1319509342772 has 6 divisors (see below), whose sum is σ = 2309141349858. Its totient is φ = 659754671384.

The previous prime is 1319509342771. The next prime is 1319509342807. The reversal of 1319509342772 is 2772439059131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 873450991396 + 446058351376 = 934586^2 + 667876^2 .

It is a super-2 number, since 2×1319509342772² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1319509342771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164938667843 + ... + 164938667850.

It is an arithmetic number, because the mean of its divisors is an integer number (384856891643).

Almost surely, 2^{1319509342772} is an apocalyptic number.

It is an amenable number.

1319509342772 is a deficient number, since it is larger than the sum of its proper divisors (989632007086).

1319509342772 is a wasteful number, since it uses less digits than its factorization.

1319509342772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329877335697 (or 329877335695 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 53.

The spelling of 1319509342772 in words is "one trillion, three hundred nineteen billion, five hundred nine million, three hundred forty-two thousand, seven hundred seventy-two".