7825661011 has 8 divisors (see below), whose sum is σ = 8947451744. Its totient is φ = 6704830080.

The previous prime is 7825660957. The next prime is 7825661023. The reversal of 7825661011 is 1101665287.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7825661011 - 2¹³ = 7825652819 is a prime.

It is a super-2 number, since 2×7825661011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7825691011) 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, 222390 + ... + 255163.

It is an arithmetic number, because the mean of its divisors is an integer number (1118431468).

Almost surely, 2^7825661011 is an apocalyptic number.

7825661011 is a deficient number, since it is larger than the sum of its proper divisors (1121790733).

7825661011 is a wasteful number, since it uses less digits than its factorization.

7825661011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479901.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 7825661011 is about 88462.7662409446. The cubic root of 7825661011 is about 1985.3649193423.

The spelling of 7825661011 in words is "seven billion, eight hundred twenty-five million, six hundred sixty-one thousand, eleven".