619968527920 has 160 divisors (see below), whose sum is σ = 1693522429056. Its totient is φ = 206613504000.

The previous prime is 619968527869. The next prime is 619968527923. The reversal of 619968527920 is 29725869916.

It is a super-2 number, since 2×619968527920² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (619968527923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21969820 + ... + 21998020.

Almost surely, 2^619968527920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 619968527920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846761214528).

619968527920 is an abundant number, since it is smaller than the sum of its proper divisors (1073553901136).

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

619968527920 is a wasteful number, since it uses less digits than its factorization.

619968527920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29319 (or 29313 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 64.

The spelling of 619968527920 in words is "six hundred nineteen billion, nine hundred sixty-eight million, five hundred twenty-seven thousand, nine hundred twenty".