15347474220 has 48 divisors (see below), whose sum is σ = 46278540000. Its totient is φ = 3777839616.

The previous prime is 15347474209. The next prime is 15347474227. The reversal of 15347474220 is 2247474351.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (15347474227) 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, 9837345 + ... + 9838904.

It is an arithmetic number, because the mean of its divisors is an integer number (964136250).

Almost surely, 2^15347474220 is an apocalyptic number.

15347474220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15347474220 is an abundant number, since it is smaller than the sum of its proper divisors (30931065780).

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

15347474220 is a wasteful number, since it uses less digits than its factorization.

15347474220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19676274 (or 19676272 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 39.

The spelling of 15347474220 in words is "fifteen billion, three hundred forty-seven million, four hundred seventy-four thousand, two hundred twenty".