44400645251355 has 16 divisors (see below), whose sum is σ = 72245117698560. Its totient is φ = 23278982368608.

The previous prime is 44400645251341. The next prime is 44400645251371. The reversal of 44400645251355 is 55315254600444.

It is not a de Polignac number, because 44400645251355 - 2⁷ = 44400645251227 is a prime.

It is a super-2 number, since 2×44400645251355² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25085109427 + ... + 25085111196.

It is an arithmetic number, because the mean of its divisors is an integer number (4515319856160).

Almost surely, 2^{44400645251355} is an apocalyptic number.

44400645251355 is a deficient number, since it is larger than the sum of its proper divisors (27844472447205).

44400645251355 is a wasteful number, since it uses less digits than its factorization.

44400645251355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50170220690.

The product of its (nonzero) digits is 5760000, while the sum is 48.

Adding to 44400645251355 its reverse (55315254600444), we get a palindrome (99715899851799).

The spelling of 44400645251355 in words is "forty-four trillion, four hundred billion, six hundred forty-five million, two hundred fifty-one thousand, three hundred fifty-five".