7243700100072 has 32 divisors (see below), whose sum is σ = 19062368685600. Its totient is φ = 2287484241984.

The previous prime is 7243700100061. The next prime is 7243700100073. The reversal of 7243700100072 is 2700010073427.

It is a super-2 number, since 2×7243700100072² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7243700100073) 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, 7942653163 + ... + 7942654074.

It is an arithmetic number, because the mean of its divisors is an integer number (595699021425).

Almost surely, 2^{7243700100072} is an apocalyptic number.

It is an amenable number.

7243700100072 is an abundant number, since it is smaller than the sum of its proper divisors (11818668585528).

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

7243700100072 is a wasteful number, since it uses less digits than its factorization.

7243700100072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15885307265 (or 15885307261 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 33.

Adding to 7243700100072 its reverse (2700010073427), we get a palindrome (9943710173499).

The spelling of 7243700100072 in words is "seven trillion, two hundred forty-three billion, seven hundred million, one hundred thousand, seventy-two".