11621752067 has 4 divisors (see below), whose sum is σ = 11622445296. Its totient is φ = 11621058840.

The previous prime is 11621752063. The next prime is 11621752081. The reversal of 11621752067 is 76025712611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76025712611 = 2713 ⋅28022747.

It is a cyclic number.

It is not a de Polignac number, because 11621752067 - 2² = 11621752063 is a prime.

It is a super-2 number, since 2×11621752067² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11621752067.

It is not an unprimeable number, because it can be changed into a prime (11621752063) 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, 320828 + ... + 355209.

It is an arithmetic number, because the mean of its divisors is an integer number (2905611324).

Almost surely, 2^11621752067 is an apocalyptic number.

11621752067 is a deficient number, since it is larger than the sum of its proper divisors (693229).

11621752067 is an equidigital number, since it uses as much as digits as its factorization.

11621752067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693228.

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 11621752067 in words is "eleven billion, six hundred twenty-one million, seven hundred fifty-two thousand, sixty-seven".