997552000038 has 32 divisors (see below), whose sum is σ = 2304505157760. Its totient is φ = 284506808960.

The previous prime is 997552000037. The next prime is 997552000051. The reversal of 997552000038 is 830000255799.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997552000037) 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, 444540768 + ... + 444543011.

It is an arithmetic number, because the mean of its divisors is an integer number (72015786180).

Almost surely, 2^997552000038 is an apocalyptic number.

997552000038 is an abundant number, since it is smaller than the sum of its proper divisors (1306953157722).

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

997552000038 is a wasteful number, since it uses less digits than its factorization.

997552000038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889083812.

The product of its (nonzero) digits is 680400, while the sum is 48.

The spelling of 997552000038 in words is "nine hundred ninety-seven billion, five hundred fifty-two million, thirty-eight", and thus it is an aban number.