1048628581481 has 12 divisors (see below), whose sum is σ = 1166186342412. Its totient is φ = 941803626816.

The previous prime is 1048628581447. The next prime is 1048628581499. The reversal of 1048628581481 is 1841858268401.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 147298602025 + 901329979456 = 383795^2 + 949384^2 .

It is not a de Polignac number, because 1048628581481 - 2¹⁸ = 1048628319337 is a prime.

It is a super-2 number, since 2×1048628581481² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1048628587481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83843786 + ... + 83856291.

It is an arithmetic number, because the mean of its divisors is an integer number (97182195201).

Almost surely, 2^{1048628581481} is an apocalyptic number.

It is an amenable number.

1048628581481 is a deficient number, since it is larger than the sum of its proper divisors (117557760931).

1048628581481 is a wasteful number, since it uses less digits than its factorization.

1048628581481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167700140 (or 167700127 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 56.

The spelling of 1048628581481 in words is "one trillion, forty-eight billion, six hundred twenty-eight million, five hundred eighty-one thousand, four hundred eighty-one".