1049564455951 has 16 divisors (see below), whose sum is σ = 1169136178848. Its totient is φ = 934209676800.

The previous prime is 1049564455943. The next prime is 1049564455969. The reversal of 1049564455951 is 1595544659401.

It is a cyclic number.

It is not a de Polignac number, because 1049564455951 - 2³ = 1049564455943 is a prime.

It is a super-2 number, since 2×1049564455951² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1049564455351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4660260 + ... + 4880281.

It is an arithmetic number, because the mean of its divisors is an integer number (73071011178).

Almost surely, 2^{1049564455951} is an apocalyptic number.

1049564455951 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1049564455951 is a deficient number, since it is larger than the sum of its proper divisors (119571722897).

1049564455951 is a wasteful number, since it uses less digits than its factorization.

1049564455951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9540762.

The product of its (nonzero) digits is 19440000, while the sum is 58.

It can be divided in two parts, 10495 and 64455951, that added together give a palindrome (64466446).

The spelling of 1049564455951 in words is "one trillion, forty-nine billion, five hundred sixty-four million, four hundred fifty-five thousand, nine hundred fifty-one".