15212049804 has 216 divisors, whose sum is σ = 47888375808. Its totient is φ = 4205688480.

The previous prime is 15212049791. The next prime is 15212049889. The reversal of 15212049804 is 40894021251.

15212049804 is a `hidden beast` number, since 152 + 12 + 0 + 498 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1471317 + ... + 1481619.

Almost surely, 2^15212049804 is an apocalyptic number.

15212049804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15212049804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23944187904).

15212049804 is an abundant number, since it is smaller than the sum of its proper divisors (32676326004).

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

15212049804 is a wasteful number, since it uses less digits than its factorization.

15212049804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10367 (or 10346 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

It can be divided in two parts, 1521 and 2049804, that added together give a triangular number (2051325 = T₂₀₂₅).

The spelling of 15212049804 in words is "fifteen billion, two hundred twelve million, forty-nine thousand, eight hundred four".