38478072423 has 32 divisors (see below), whose sum is σ = 59320199680. Its totient is φ = 21730498560.

The previous prime is 38478072419. The next prime is 38478072427. The reversal of 38478072423 is 32427087483.

It is an interprime number because it is at equal distance from previous prime (38478072419) and next prime (38478072427).

It is not a de Polignac number, because 38478072423 - 2² = 38478072419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38478072427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1492563 + ... + 1518123.

It is an arithmetic number, because the mean of its divisors is an integer number (1853756240).

Almost surely, 2^38478072423 is an apocalyptic number.

38478072423 is a deficient number, since it is larger than the sum of its proper divisors (20842127257).

38478072423 is a wasteful number, since it uses less digits than its factorization.

38478072423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26407.

The product of its (nonzero) digits is 1806336, while the sum is 48.

The spelling of 38478072423 in words is "thirty-eight billion, four hundred seventy-eight million, seventy-two thousand, four hundred twenty-three".