1963503867507 has 16 divisors (see below), whose sum is σ = 3222160193280. Its totient is φ = 1035694347552.

The previous prime is 1963503867473. The next prime is 1963503867557. The reversal of 1963503867507 is 7057683053691.

It is not a de Polignac number, because 1963503867507 - 2⁷ = 1963503867379 is a prime.

It is a super-2 number, since 2×1963503867507² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1963503867557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3596160657 + ... + 3596161202.

It is an arithmetic number, because the mean of its divisors is an integer number (201385012080).

Almost surely, 2^{1963503867507} is an apocalyptic number.

1963503867507 is a deficient number, since it is larger than the sum of its proper divisors (1258656325773).

1963503867507 is a wasteful number, since it uses less digits than its factorization.

1963503867507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7192321882.

The product of its (nonzero) digits is 28576800, while the sum is 60.

It can be divided in two parts, 1963503 and 867507, that added together give a triangular number (2831010 = T₂₃₇₉).

The spelling of 1963503867507 in words is "one trillion, nine hundred sixty-three billion, five hundred three million, eight hundred sixty-seven thousand, five hundred seven".