1036945978157 has 4 divisors (see below), whose sum is σ = 1036948703580. Its totient is φ = 1036943252736.

The previous prime is 1036945978141. The next prime is 1036945978193. The reversal of 1036945978157 is 7518795496301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 401846959396 + 635099018761 = 633914^2 + 796931^2 .

It is a cyclic number.

It is not a de Polignac number, because 1036945978157 - 2⁴ = 1036945978141 is a prime.

It is a super-2 number, since 2×1036945978157² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1036945978093 and 1036945978102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1036945978657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676982 + ... + 1591287.

It is an arithmetic number, because the mean of its divisors is an integer number (259237175895).

Almost surely, 2^{1036945978157} is an apocalyptic number.

It is an amenable number.

1036945978157 is a deficient number, since it is larger than the sum of its proper divisors (2725423).

1036945978157 is an equidigital number, since it uses as much as digits as its factorization.

1036945978157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2725422.

The product of its (nonzero) digits is 57153600, while the sum is 65.

It can be divided in two parts, 1036945 and 978157, that added together give a palindrome (2015102).

The spelling of 1036945978157 in words is "one trillion, thirty-six billion, nine hundred forty-five million, nine hundred seventy-eight thousand, one hundred fifty-seven".