1520742520650 has 24 divisors (see below), whose sum is σ = 3771441451584. Its totient is φ = 405531338800.

The previous prime is 1520742520567. The next prime is 1520742520673. The reversal of 1520742520650 is 560252470251.

It is a super-2 number, since 2×1520742520650² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1520742520599 and 1520742520608.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5069141586 + ... + 5069141885.

It is an arithmetic number, because the mean of its divisors is an integer number (157143393816).

Almost surely, 2^{1520742520650} is an apocalyptic number.

1520742520650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1520742520650 is an abundant number, since it is smaller than the sum of its proper divisors (2250698930934).

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

1520742520650 is a wasteful number, since it uses less digits than its factorization.

1520742520650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10138283486 (or 10138283481 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 39.

The spelling of 1520742520650 in words is "one trillion, five hundred twenty billion, seven hundred forty-two million, five hundred twenty thousand, six hundred fifty".