7552897747944 has 64 divisors (see below), whose sum is σ = 18897992064000. Its totient is φ = 2515533737664.

The previous prime is 7552897747943. The next prime is 7552897747949. The reversal of 7552897747944 is 4497477982557.

It is a self number, because there is not a number n which added to its sum of digits gives 7552897747944.

It is not an unprimeable number, because it can be changed into a prime (7552897747943) 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, 158653857 + ... + 158701455.

It is an arithmetic number, because the mean of its divisors is an integer number (295281126000).

Almost surely, 2^{7552897747944} is an apocalyptic number.

It is an amenable number.

7552897747944 is an abundant number, since it is smaller than the sum of its proper divisors (11345094316056).

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

7552897747944 is a wasteful number, since it uses less digits than its factorization.

7552897747944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52982 (or 52978 counting only the distinct ones).

The product of its digits is 4978713600, while the sum is 78.

The spelling of 7552897747944 in words is "seven trillion, five hundred fifty-two billion, eight hundred ninety-seven million, seven hundred forty-seven thousand, nine hundred forty-four".