15400026949 has 8 divisors (see below), whose sum is σ = 15477480000. Its totient is φ = 15322766592.

The previous prime is 15400026899. The next prime is 15400027001. The reversal of 15400026949 is 94962000451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15400026949 - 2⁷ = 15400026821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15400056949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113422 + ... + 208960.

It is an arithmetic number, because the mean of its divisors is an integer number (1934685000).

Almost surely, 2^15400026949 is an apocalyptic number.

It is an amenable number.

15400026949 is a deficient number, since it is larger than the sum of its proper divisors (77453051).

15400026949 is an equidigital number, since it uses as much as digits as its factorization.

15400026949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96347.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 15400026949 in words is "fifteen billion, four hundred million, twenty-six thousand, nine hundred forty-nine".