1378041750497 has 8 divisors (see below), whose sum is σ = 1459114892712. Its totient is φ = 1296969926400.

The previous prime is 1378041750493. The next prime is 1378041750499. The reversal of 1378041750497 is 7940571408731.

It can be written as a sum of positive squares in 4 ways, for example, as 255291709696 + 1122750040801 = 505264^2 + 1059599^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1378041750497 - 2² = 1378041750493 is a prime.

It is a super-2 number, since 2×1378041750497² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1378041750493) 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, 2533847 + ... + 3029267.

It is an arithmetic number, because the mean of its divisors is an integer number (182389361589).

Almost surely, 2^{1378041750497} is an apocalyptic number.

1378041750497 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1378041750497 is a deficient number, since it is larger than the sum of its proper divisors (81073142215).

1378041750497 is a wasteful number, since it uses less digits than its factorization.

1378041750497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659059.

The product of its (nonzero) digits is 5927040, while the sum is 56.

The spelling of 1378041750497 in words is "one trillion, three hundred seventy-eight billion, forty-one million, seven hundred fifty thousand, four hundred ninety-seven".