7740237061 has 4 divisors (see below), whose sum is σ = 7789538092. Its totient is φ = 7690936032.

The previous prime is 7740237023. The next prime is 7740237073. The reversal of 7740237061 is 1607320477.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4949122500 + 2791114561 = 70350^2 + 52831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7740237061 is a prime.

It is a super-2 number, since 2×7740237061² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7740237061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7740237761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24650280 + ... + 24650593.

It is an arithmetic number, because the mean of its divisors is an integer number (1947384523).

Almost surely, 2^7740237061 is an apocalyptic number.

It is an amenable number.

7740237061 is a deficient number, since it is larger than the sum of its proper divisors (49301031).

7740237061 is a wasteful number, since it uses less digits than its factorization.

7740237061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49301030.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 7740237061 is about 87978.6170668760. The cubic root of 7740237061 is about 1978.1144738430.

The spelling of 7740237061 in words is "seven billion, seven hundred forty million, two hundred thirty-seven thousand, sixty-one".