1156275009940 has 12 divisors (see below), whose sum is σ = 2428177520916. Its totient is φ = 462510003968.

The previous prime is 1156275009893. The next prime is 1156275009971. The reversal of 1156275009940 is 499005726511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 449495157136 + 706779852804 = 670444^2 + 840702^2 .

It is a super-2 number, since 2×1156275009940² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28906875229 + ... + 28906875268.

It is an arithmetic number, because the mean of its divisors is an integer number (202348126743).

Almost surely, 2^{1156275009940} is an apocalyptic number.

1156275009940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1156275009940 is an abundant number, since it is smaller than the sum of its proper divisors (1271902510976).

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

1156275009940 is a wasteful number, since it uses less digits than its factorization.

1156275009940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57813750506 (or 57813750504 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 49.

The spelling of 1156275009940 in words is "one trillion, one hundred fifty-six billion, two hundred seventy-five million, nine thousand, nine hundred forty".