7271987082 has 32 divisors (see below), whose sum is σ = 15410736000. Its totient is φ = 2279743488.

The previous prime is 7271987081. The next prime is 7271987089. The reversal of 7271987082 is 2807891727.

It is a happy number.

It is a super-2 number, since 2×7271987082² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (7271987081) 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, 118419 + ... + 169017.

It is an arithmetic number, because the mean of its divisors is an integer number (481585500).

Almost surely, 2^7271987082 is an apocalyptic number.

7271987082 is an abundant number, since it is smaller than the sum of its proper divisors (8138748918).

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

7271987082 is a wasteful number, since it uses less digits than its factorization.

7271987082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52030.

The product of its (nonzero) digits is 790272, while the sum is 51.

The square root of 7271987082 is about 85275.9466790020. The cubic root of 7271987082 is about 1937.3928809984.

The spelling of 7271987082 in words is "seven billion, two hundred seventy-one million, nine hundred eighty-seven thousand, eighty-two".