15053261439373 has 4 divisors (see below), whose sum is σ = 15131257612828. Its totient is φ = 14975265265920.

The previous prime is 15053261439371. The next prime is 15053261439389. The reversal of 15053261439373 is 37393416235051.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5292148418089 + 9761113021284 = 2300467^2 + 3124278^2 .

It is a cyclic number.

It is not a de Polignac number, because 15053261439373 - 2¹ = 15053261439371 is a prime.

It is a super-2 number, since 2×15053261439373² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15053261439373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15053261439371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38998086438 + ... + 38998086823.

It is an arithmetic number, because the mean of its divisors is an integer number (3782814403207).

Almost surely, 2^{15053261439373} is an apocalyptic number.

It is an amenable number.

15053261439373 is a deficient number, since it is larger than the sum of its proper divisors (77996173455).

15053261439373 is an equidigital number, since it uses as much as digits as its factorization.

15053261439373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77996173454.

The product of its (nonzero) digits is 6123600, while the sum is 52.

The spelling of 15053261439373 in words is "fifteen trillion, fifty-three billion, two hundred sixty-one million, four hundred thirty-nine thousand, three hundred seventy-three".