3640622551457 has 4 divisors (see below), whose sum is σ = 3646392159936. Its totient is φ = 3634852942980.

The previous prime is 3640622551453. The next prime is 3640622551477. The reversal of 3640622551457 is 7541552260463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3640622551457 - 2² = 3640622551453 is a prime.

It is a super-2 number, since 2×3640622551457² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3640622551453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2884803293 + ... + 2884804554.

It is an arithmetic number, because the mean of its divisors is an integer number (911598039984).

Almost surely, 2^{3640622551457} is an apocalyptic number.

It is an amenable number.

3640622551457 is a deficient number, since it is larger than the sum of its proper divisors (5769608479).

3640622551457 is an equidigital number, since it uses as much as digits as its factorization.

3640622551457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5769608478.

The product of its (nonzero) digits is 6048000, while the sum is 50.

The spelling of 3640622551457 in words is "three trillion, six hundred forty billion, six hundred twenty-two million, five hundred fifty-one thousand, four hundred fifty-seven".