1376653623 has 16 divisors (see below), whose sum is σ = 1870794240. Its totient is φ = 900256896.

The previous prime is 1376653583. The next prime is 1376653627. The reversal of 1376653623 is 3263566731.

It is not a de Polignac number, because 1376653623 - 2⁶ = 1376653559 is a prime.

It is a super-2 number, since 2×1376653623² = 3790350395438052258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1376653627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33711 + ... + 62367.

It is an arithmetic number, because the mean of its divisors is an integer number (116924640).

Almost surely, 2^1376653623 is an apocalyptic number.

1376653623 is a deficient number, since it is larger than the sum of its proper divisors (494140617).

1376653623 is a wasteful number, since it uses less digits than its factorization.

1376653623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28966.

The product of its digits is 408240, while the sum is 42.

The square root of 1376653623 is about 37103.2831835675. The cubic root of 1376653623 is about 1112.4356393857.

The spelling of 1376653623 in words is "one billion, three hundred seventy-six million, six hundred fifty-three thousand, six hundred twenty-three".