11258071780 has 24 divisors (see below), whose sum is σ = 23693254200. Its totient is φ = 4493456640.

The previous prime is 11258071739. The next prime is 11258071793. The reversal of 11258071780 is 8717085211.

It can be written as a sum of positive squares in 4 ways, for example, as 728028324 + 10530043456 = 26982^2 + 102616^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601305 + ... + 619744.

It is an arithmetic number, because the mean of its divisors is an integer number (987218925).

Almost surely, 2^11258071780 is an apocalyptic number.

11258071780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11258071780 is an abundant number, since it is smaller than the sum of its proper divisors (12435182420).

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

11258071780 is a wasteful number, since it uses less digits than its factorization.

11258071780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221519 (or 1221517 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 40.

The spelling of 11258071780 in words is "eleven billion, two hundred fifty-eight million, seventy-one thousand, seven hundred eighty".