7721048106 has 24 divisors (see below), whose sum is σ = 16731293124. Its totient is φ = 2573320320.

The previous prime is 7721048057. The next prime is 7721048123. The reversal of 7721048106 is 6018401277.

It can be written as a sum of positive squares in 2 ways, for example, as 7634390625 + 86657481 = 87375^2 + 9309^2 .

It is a super-2 number, since 2×7721048106² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121890 + ... + 174066.

Almost surely, 2^7721048106 is an apocalyptic number.

7721048106 is an abundant number, since it is smaller than the sum of its proper divisors (9010245018).

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

7721048106 is a wasteful number, since it uses less digits than its factorization.

7721048106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60406 (or 60403 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 7721048106 is about 87869.4947407802. The cubic root of 7721048106 is about 1976.4784619225.

It can be divided in two parts, 77210 and 48106, that added together give a square (125316 = 354²).

The spelling of 7721048106 in words is "seven billion, seven hundred twenty-one million, forty-eight thousand, one hundred six".