7949553740 has 24 divisors (see below), whose sum is σ = 17009047440. Its totient is φ = 3119824448.

The previous prime is 7949553739. The next prime is 7949553743. The reversal of 7949553740 is 473559497.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (7949553743) 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, 3748730 + ... + 3750849.

It is an arithmetic number, because the mean of its divisors is an integer number (708710310).

Almost surely, 2^7949553740 is an apocalyptic number.

It is an amenable number.

7949553740 is an abundant number, since it is smaller than the sum of its proper divisors (9059493700).

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

7949553740 is a wasteful number, since it uses less digits than its factorization.

7949553740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7499641 (or 7499639 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 53.

The square root of 7949553740 is about 89160.2699637008. The cubic root of 7949553740 is about 1995.7872777158.

The spelling of 7949553740 in words is "seven billion, nine hundred forty-nine million, five hundred fifty-three thousand, seven hundred forty".