149620428864 has 189 divisors, whose sum is σ = 436909976191. Its totient is φ = 48954420480.

The previous prime is 149620428787. The next prime is 149620428871. The reversal of 149620428864 is 468824026941.

It is a happy number.

The square root of 149620428864 is 386808.

It is a perfect power (a square), and thus also a powerful number.

149620428864 is a `hidden beast` number, since 1 + 4 + 9 + 620 + 4 + 2 + 8 + 8 + 6 + 4 = 666.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149620428864.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 659120719 + ... + 659120945.

Almost surely, 2^149620428864 is an apocalyptic number.

149620428864 is the 386808-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149620428864

149620428864 is an abundant number, since it is smaller than the sum of its proper divisors (287289547327).

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

149620428864 is an frugal number, since it uses more digits than its factorization.

149620428864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 54.

The spelling of 149620428864 in words is "one hundred forty-nine billion, six hundred twenty million, four hundred twenty-eight thousand, eight hundred sixty-four".