7544904642 has 48 divisors (see below), whose sum is σ = 18212867712. Its totient is φ = 2237686560.

The previous prime is 7544904641. The next prime is 7544904643. The reversal of 7544904642 is 2464094457.

It is an interprime number because it is at equal distance from previous prime (7544904641) and next prime (7544904643).

It is not an unprimeable number, because it can be changed into a prime (7544904641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 396073 + ... + 414684.

It is an arithmetic number, because the mean of its divisors is an integer number (379434744).

Almost surely, 2^7544904642 is an apocalyptic number.

7544904642 is an abundant number, since it is smaller than the sum of its proper divisors (10667963070).

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

7544904642 is a wasteful number, since it uses less digits than its factorization.

7544904642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810823 (or 810820 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The square root of 7544904642 is about 86861.4105457654. The cubic root of 7544904642 is about 1961.3326216036.

The spelling of 7544904642 in words is "seven billion, five hundred forty-four million, nine hundred four thousand, six hundred forty-two".