1040521771040 has 48 divisors (see below), whose sum is σ = 2487849977088. Its totient is φ = 411194140416.

The previous prime is 1040521771033. The next prime is 1040521771049. The reversal of 1040521771040 is 401771250401.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 1040521770988 and 1040521771006.

It is not an unprimeable number, because it can be changed into a prime (1040521771049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39162992 + ... + 39189551.

It is an arithmetic number, because the mean of its divisors is an integer number (51830207856).

Almost surely, 2^{1040521771040} is an apocalyptic number.

1040521771040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040521771040 is an abundant number, since it is smaller than the sum of its proper divisors (1447328206048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1040521771040 is an equidigital number, since it uses as much as digits as its factorization.

1040521771040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78352641 (or 78352633 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The spelling of 1040521771040 in words is "one trillion, forty billion, five hundred twenty-one million, seven hundred seventy-one thousand, forty".