7542661712 has 80 divisors (see below), whose sum is σ = 15244381440. Its totient is φ = 3613209600.

The previous prime is 7542661697. The next prime is 7542661717. The reversal of 7542661712 is 2171662457.

It is a self number, because there is not a number n which added to its sum of digits gives 7542661712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7542661717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6166733 + ... + 6167955.

It is an arithmetic number, because the mean of its divisors is an integer number (190554768).

Almost surely, 2^7542661712 is an apocalyptic number.

It is an amenable number.

7542661712 is an abundant number, since it is smaller than the sum of its proper divisors (7701719728).

7542661712 is a wasteful number, since it uses less digits than its factorization.

7542661712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452 (or 1446 counting only the distinct ones).

The product of its digits is 141120, while the sum is 41.

The square root of 7542661712 is about 86848.4986168443. The cubic root of 7542661712 is about 1961.1382490224.

The spelling of 7542661712 in words is "seven billion, five hundred forty-two million, six hundred sixty-one thousand, seven hundred twelve".