7021452817158 has 32 divisors (see below), whose sum is σ = 15123238002432. Its totient is φ = 2160431469600.

The previous prime is 7021452817139. The next prime is 7021452817199. The reversal of 7021452817158 is 8517182541207.

It is a self number, because there is not a number n which added to its sum of digits gives 7021452817158.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15511903 + ... + 15958133.

It is an arithmetic number, because the mean of its divisors is an integer number (472601187576).

Almost surely, 2^{7021452817158} is an apocalyptic number.

7021452817158 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

7021452817158 is an abundant number, since it is smaller than the sum of its proper divisors (8101785185274).

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

7021452817158 is a wasteful number, since it uses less digits than its factorization.

7021452817158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647980.

The product of its (nonzero) digits is 1254400, while the sum is 51.

The spelling of 7021452817158 in words is "seven trillion, twenty-one billion, four hundred fifty-two million, eight hundred seventeen thousand, one hundred fifty-eight".